Egyptian pyramids
The Giza Necropolis Arabic أهرامات الجيزة "pyramids of Gizais an archaeological site on the Giza Plateau, on the outskirts of Cairo, Egypt. This complex of ancient monuments includes the three
pyramid complexes known as the Great Pyramids, the massive sculpture known as the Great Sphinx, several cemeteries, a workers' village and an industrial complex. It is located some 9 km 5 mi inland into the desert from the old town of Giza on the Nile, some 25 km (15 mi) southwest of Cairo city centre. The pyramids, which have historically loomed large as emblems of ancient Egypt in the Western imagination were popularised in Hellenistic times
when the Great Pyramid was listed by Antipater of Sidon as one of the Seven Wonders of the World. It is by far the oldest of the ancient Wonders and the only one still in existence
Giza
Aerial view of Giza pyramid complex
Giza is the location of the Pyramid of Khufu (also known as the Great Pyramid" and the "Pyramid of Cheops"); the somewhat
smaller Pyramid of Khafre (or Kephren); the relatively modest-sized Pyramid of Menkaure (or Mykerinus), along with a number of smaller satellite edifices known as "Queen's pyramids"; and the Great Sphinx
Of the three, only Khafre's pyramid retains part of its original polished limestone casing, near its apex. This pyramid appears larger than the adjacent Khufu pyramid by virtue of its more elevated location, and the steeper angle of inclination of its construction – it is, in fact, smaller in both height and volume.
The Giza Necropolis has been a popular tourist destination since antiquity, and was popularized in Hellenistic times when the Great Pyramid was listed by Antipater of Sidon as one of the Seven
Wonders of the World. Today it is the only one of those wonders still in existence
The Great Pyramid of Khufu
Khufu Belongs to the Horizon
Original Height: 146.6 m 480.96 ft
Current Height: 138.75 m 455.21 ft
Length of Side: 230.37 755.8 ft
Angle: 51º 50’ 40
Estimated Volume: 2,521,000 cm
Khufu – 2575-2566 BC
The largest of the three pyramids at Giza, known as the Great Pyramid, is truly an astonishing work of engineering. It was built over a twenty year period. Some believe that it was built by slaves, but this is not true. One hundred thousand people worked on the great structure for three months of each year, during the Nile’s
annual flood when it was impossible to farm the land and most of the population was unemployed. The pharaoh provided good food and clothing for his workers, and was kindly remembered in folk tales for many centuries
The sides are oriented to the four cardinal points of the compass and the length of each side at
the base It was constructed using around 2,300,000 limestone blocks, each weighing an average of 2.5 tons. Some blocks weigh as much as 16 tons. For centuries, the Great Pyramid was encased
in smooth limestone, but this was plundered in our era to build Cairo
It is believed the pyramid was built as a tomb for Fourth Dynasty Egyptian pharaoh Khufu (often Hellenicised as "Cheops") and was constructed over a 20-year period. Khufu's vizier, Hemon, or Hemiunu, is believed by some to be the architect of the Great Pyramid It is thought that, at construction, the Great Pyramid was originally 280 Egyptian cubits tall (146.5 metres (480.6 ft)), but with erosion and absence of its pyramidion, its present height is 138.8 metres (455.4 ft). Each base side was 440 cubits, 230.4 metres (755.9 ft) long. The mass of the pyramid is estimated at 5.9 million tonnes. The volume, including an internal
hillock, is roughly 2,500,000 cubic metres (88,000,000 cu ft). Based on these estimates, building the pyramid in 20 years would involve installing approximately 800 tonnes of stone every day. Additionally, since it consists of an estimated 2.3 million blocks, completing the building in 20 years would involve moving an average of more than 12 of the blocks into place each hour, day and night. The first precision measurements of the pyramid were made by Egyptologist Sir Flinders Petrie in 1880–82 and published as The Pyramids and Temples of Gizeh.[6] Almost all reports are based on his measurements. Many of the casing stones and inner chamber blocks of the Great Pyramid fit together with extremely high precision. Based on measurements taken on the north eastern casing stones, the mean opening of the joints is only 0.5 millimetres wide (1/50th of an inch
Great Pyramid of Giza from a 19th-century stereopticon card photo
The pyramid remained the tallest man-made structure in the world for over 3,800 years unsurpassed until the 160-metre-tall (520 ft)
spire of Lincoln Cathedral was completed c. 1300. The accuracy of the pyramid's workmanship is such that the four sides of the base have an average error of only 58 millimetres in length.[9] The base is horizontal and flat to within ±15 mm (0.6 in).The sides of the square base are closely aligned to the four cardinal compass points (within four minutes of arc)based on true north, not magnetic north and the finished base was squared to a mean corner error of only 12 seconds of arcThe completed design dimensions, as suggested by Petrie's survey and subsequent studies, are estimated to have originally been 280 Royal cubits high by 440 Royal cubits long at each of the four sides of its base. The ratio of the perimeter to height of 1760/280 Royal cubits equates to 2π to an accuracy of better than 0.05% (corresponding to the well-known approximation
of π as 22/7). Some Egyptologists consider this to have been the result of deliberate design proportion. Verner wrote, "We can conclude that although the ancient Egyptians could not precisely define the value of π, in practice they used it Petrie, author of Pyramids and Temples of Gizeh concluded: "but these relations of areas and of circular ratio are so systematic that we should grant that they were in the builder's design Others have argued that the Ancient Egyptians had no concept of pi and would not have thought to encode it in their monuments. They believe that the observed pyramid slope may be based on a simple seked slope choice alone, with no regard to the overall size and proportions of the finished building
Materials
The Great Pyramid consists of an estimated 2.3 million blocks which most believe to have been transported from nearby quarries. The Tura limestone used for the casing was quarried across the
river. The largest granite stones in the pyramid, found in the "King's" chamber, weigh 25 to 80 tonnes and were transported from Aswan, more than 800 km (500 mi) away. Traditionally, ancient Egyptians cut stone blocks by hammering into them some wooden wedges, which were then soaked with water. As the water was absorbed, the wedges expanded, causing the rock to crack. Once they were cut, they were carried by boat either up or down the Nile River to the pyramid.It is estimated that 5.5 million tonnes of limestone, 8,000 tonnes of granite (imported from Aswan), and 500,000 tonnes of mortar were used in the construction of the Great Pyramid
Casing stones
Casing stone in the British Museum
At completion, the Great Pyramid was surfaced by white "casing stones" – slant-faced, but flat-topped, blocks of highly polished white limestone. These were carefully cut to what is approximately a face slope with a seked of 5½ palms to give the required
dimensions. Visibly, all that remains is the underlying stepped core structure seen today. In AD 1303, a massive earthquake loosened many of the outer casing stones, which were then carted away by Bahri Sultan An-Nasir Nasir-ad-Din al-Hasan in 1356 to build mosques and fortresses in nearby Cairo. Many more casing stones were removed from the great pyramids by Muhammad Ali Pasha in the early 19th century to build the upper portion of his Alabaster Mosque in Cairo not far from Giza. These limestone casings can still be seen as parts of these structures. Later explorers reported massive piles of rubble at the base of the pyramids left over from the continuing collapse of the casing stones, which were subsequently cleared away during continuing excavations of the site. Nevertheless, a few of the casing stones from the lowest course can be seen to this day in situ around
the base of the Great Pyramid, and display the same workmanship and precision that has been reported for centuries. Petrie also found a different orientation in the core and in the casing measuring 193 centimetres ± 25 centimetres. He suggested a redetermination of north was made after the construction of the core, but a mistake was made, and the casing was built with a different orientation Petrie related the precision of the casing stones as to being "equal to opticians' work of the present day, but on a scale of acres" and "to place such stones in exact contact would be careful work; but to
do so with cement in the joints seems almost impossible". It has been suggested it was the mortar (Petrie's "cement") that made this seemingly impossible task possible, providing a level bed, which enabled the masons to set the stones exactly
Construction theories
Main article: Egyptian pyramid construction techniques
Clay seal bearing the name of Khufu from the great pyramid. On display at the Musée du Louvre.
Many alternative, often contradictory, theories have been proposed regarding the pyramid's construction techniques Many disagree on whether the blocks were dragged, lifted, or even rolled into place. The Greeks believed that slave labour was used, but modern discoveries made at nearby workers' camps associated with construction at Giza suggest that it was built instead by tens of thousands of skilled workers. Verner posited that the labour was organized into a hierarchy, consisting of two gangs of 100,000 men, divided into five zaa or phyle of 20,000 men each, which may have been further divided according to the skills of the workers
One mystery of the pyramid's construction is its planning. John Romer suggests that they used the same method that had been used for earlier and later constructions, laying out parts of the plan on the ground at a 1-to-1 scale. He writes that "such a working diagram would also serve to generate the architecture of the pyramid with precision unmatched by any other means" He also argues for a 14-year time span for its construction
A modern construction management study, in association with Mark Lehner and other Egyptologists, estimated that the total project required an average workforce of 14,567 people and a peak workforce of 40,000. Without the use of pulleys, wheels, or iron tools, they used critical path analysis to suggest that the Great Pyramid was completed from start to finish in approximately 10 years
Interior
Diagram of the interior structures of the Great Pyramid. The inner line indicates the pyramid's present profile; the outer line indicates the original profile.
The original entrance to the Great Pyramid is 17 metres (56 ft) vertically above ground level and 7.29 metres (23.9 ft) east of the center line of the pyramid. From this original entrance, there is a Descending Passage 0.96 metres (3.1 ft) high and 1.04 metres (3.4 ft) wide, which goes down at an angle of 26° 31'23" through the masonry of the pyramid and then into the bedrock beneath it. After 105.23 metres (345.2 ft), the passage becomes level and continues for an additional 8.84 metres (29.0 ft) to the lower Chamber, which appears not to have been finished. There is a continuation of the horizontal passage in the south wall of the lower chamber; there is also a pit dug in the floor of the chamber. Some Egyptologists suggest that this Lower Chamber was intended to be the original burial chamber, but Pharaoh Khufu later changed his mind and wanted it to be higher up in the pyramid
At 28.2 metres (93 ft) from the entrance is a square hole in the roof of the Descending Passage. Originally concealed with a slab of stone, this is the beginning of the Ascending Passage. The Ascending Passage is 39.3 metres (129 ft) long, as wide and high as the Descending Passage and slopes up at almost precisely the same angle. The lower end of the Ascending Passage is closed by three huge blocks of granite, each about 1.5 metres (4.9 ft) long. At the start of the Grand Gallery on the right-hand side there is a hole cut in the wall. This is the start of a vertical shaft which follows an irregular path through the masonry of the pyramid to join the Descending Passage. Also at the start of the Grand Gallery there is the Horizontal Passage leading to the "Queen's Chamber". The passage is 1.1m (3'8") high for most of its length, but near the chamber there is a step in the floor, after which the passage is 1.73 metres (5.7 ft) high.
Queen's Chamber
Richard Pocockes sketch of Pyramid of Cheops from 1754.
The Queen's Chamber is exactly half-way between the north and south faces of the pyramid and measures 5.75 metres (18.9 ft) north to south, 5.23 metres (17.2 ft) east to west, and has a pointed roof with an apex 6.23 metres (20.4 ft) above the floor. At the eastern end of the chamber there is a niche 4.67 metres (15.3 ft) high. The original depth of the niche was 1.04 metres (3.4 ft), but has since been deepened by treasure hunters.[citation needed]
In the north and south walls of the Queen's Chamber there are shafts, which unlike those in the King's Chamber that immediately slope upwards, are horizontal for around 2 m (6.6 ft) before sloping upwards. The horizontal distance was cut in 1872 by a British engineer, Waynman Dixon, who believed a similar shaft to the King's Chamber must also exist. He was proved right, but because the shafts are not connected to the outer faces of the pyramid or the Queen's Chamber, their purpose is unknown. At the end of one of his shafts, Dixon discovered a ball of black diorite (a type of rock) and a bronze implement of unknown purpose. Both objects are currently in the British Museum.
The shafts in the Queen's Chamber were explored in 1993 by the German engineer Rudolf Gantenbrink using a crawler robot he designed, Upuaut 2. After a climb of 65 m (213 ft),the discovered that one of the shafts was blocked by limestone "doors" with two eroded copper "handles". Some years later the National Geographic Society created a similar robot which drilled a small hole in the southern door, only to find another door behind it. The northern passage, which was difficult to navigate because of twists and turns, was also found to be blocked by a door
Research continued in 2011 with the Djedi Project. Realizing the problem was that the National Geographic Society's camera was only able to see straight ahead of it, they instead used a fiber-optic "micro snake camera" that could see around corners. With this they were able to penetrate the first door of the southern shaft through the hole drilled in 2002, and view all the sides of the small chamber behind it. They discovered hieroglyphs written in red paint. They were also able to scrutinize the inside of the two copper "handles" embedded in the door, and they now believe them to be for decorative purposes. They also found the reverse side of the "door" to be finished and polished, which suggests that it was not put there just to block the shaft from debris, but rather for a more specific reason
Grand Gallery
The Grand Gallery of the Great Pyramid of Giza
The Grand Gallery continues the slope of the Ascending Passage, but is 8.6 metres (28 ft) high and 46.68 metres (153.1 ft) long. At the base it is 2.06 metres (6.8 ft) wide, but after 2.29 metres (7.5 ft) the blocks of stone in the walls are corbelled inwards by 7.6 centimetres (3.0 in) on each side. There are seven of these steps, so, at the top, the Grand Gallery is only 1.04 metres (3.4 ft) wide. It is roofed by slabs of stone laid at a slightly steeper angle than the floor of the gallery, so that each stone fits into a slot cut in the top of the gallery like the teeth of a ratchet. The purpose was to have each block supported by the wall of the Gallery rather than resting on the block beneath it, which would have resulted in an unacceptable cumulative pressure at the lower end of the Gallery
At the upper end of the Gallery on the right-hand side there is a hole near the roof that opens into a short tunnel by which access can be gained to the lowest of the Relieving Chambers. The other Relieving Chambers were discovered in 1837/8 by Colonel Howard Vyse and J. S. Perring, who dug tunnels upwards using blasting powder.
The floor of the Grand Gallery consists of a shelf or step on either side, 51 centimetres (20 in) wide, leaving a lower ramp 1.04 metres (3.4 ft) wide between them. In the shelves there are 54 slots, 27 on each side matched by vertical and horizontal slots in the walls of the Gallery. These form a cross shape that rises out of the slot in the shelf. The purpose of these slots is not known, but the central gutter in the floor of the Gallery, which is the same width as the Ascending Passage, has led to speculation that the blocking stones were stored in the Grand Gallery and the slots held wooden beams to restrain them from sliding down the passage This, in turn, has led to the proposal that originally many more than 3 blocking stones were intended, to completely fill the Ascending Passage.[citation needed]
At the top of the Grand Gallery, there is a step giving onto a horizontal passage some meters long and approximately 1.02 metres (3.3 ft) in height and width, in which can be detected four slots, three of which were probably intended to hold granite portcullises. Fragments of granite found by Petrie in the Descending Passage may have come from these now-vanished doors.
King's Chamber
Sarcophagus in the King's chamber
The King's Chamber is 10.47 metres (34.4 ft) from east to west and 5.234 metres (17.17 ft) north to south. It has a flat roof 5.974 metres (19.60 ft) above the floor. 0.91 m (3.0 ft) above the floor there are two narrow shafts in the north and south walls (one is now filled by an extractor fan in an attempt to circulate air inside the pyramid). The purpose of these shafts is not clear: they appear to be aligned toward stars or areas of the northern and southern skies, yet one of them follows a dog-leg course through the masonry, indicating no intention to directly sight stars through them. They were long believed by Egyptologists to be "air shafts" for ventilation, but this idea has now been widely abandoned in favour of the shafts serving a ritualistic purpose associated with the ascension of the king’s spirit to the heavens
The King's Chamber is entirely faced with granite. Above the roof, which is formed of nine slabs of stone weighing in total about 400 tons, are five compartments known as Relieving Chambers. The first four, like the King's Chamber, have flat roofs formed by the floor of the chamber above, but the final chamber has a pointed roof. Vyse suspected the presence of upper chambers when he found that he could push a long reed through a crack in the ceiling of the first chamber. From lower to upper, the chambers are known as "Davison's Chamber", "Wellington's Chamber", "Nelson's Chamber", "Lady Arbuthnot's Chamber", and "Campbell's Chamber". It is believed that the compartments were intended to safeguard the King's Chamber from the possibility of a roof collapsing under the weight of stone above the Chamber. As the chambers were not intended to be seen, they were not finished in any way and a few of the stones still retain masons' marks painted on them. One of the stones in Campbell's Chamber bears a mark, apparently the name of a work gang
The entrance of the Pyramid
The only object in the King's Chamber is a rectangular granite sarcophagus, one corner of which is broken. The sarcophagus is slightly larger than the Ascending Passage, which indicates that it must have been placed in the Chamber before the roof was put in place. Unlike the fine masonry of the walls of the Chamber, the sarcophagus is roughly finished, with saw marks visible in several places. This is in contrast with the finely finished and decorated sarcophagi found in other pyramids of the same period. Petrie suggested that such a sarcophagus was intended but was lost in the river on the way north from Aswan and a hurriedly made replacement was used instead.
Modern entrance
Today tourists enter the Great Pyramid via the Robbers' Tunnel, a tunnel created around AD 820 by Caliph al-Ma'mun's workmen using a battering ram.[36] The tunnel is cut straight through the masonry of the pyramid for approximately 27 metres (89 ft), then turns sharply left to encounter the blocking stones in the Ascending Passage. It is believed that their efforts dislodged the stone fitted in the ceiling of the Descending Passage to hide the entrance to the Ascending Passage and it was the noise of that stone falling and then sliding down the Descending Passage, which alerted them to the need to turn left. Unable to remove these stones, however, the workmen tunnelled up beside them through the softer limestone of the Pyramid until they reached the Ascending Passage. It is possible to enter the Descending Passage from this point, but access is usually forbidden
pyramid of khafre
Khafre 2558–2532 BC
Giza7Khufu’s son, Khafre
also known as
Chephren His pyramid
Coordinates: 29°58′34″N 31°07′51″E
Ancient name Great is Khafre
Type True pyramid
Height 136.4 metres (448 ft)
(Originally: 143.5 m or 471 ft)
Base 215.28 metres (706 ft)
Slope 53°10\n a nearby site at Giza, appears taller than his father’s, but this is an illusion; it is built on higher ground and was in fact, originally at 447 .5 feet (136.4 m), 33.5 feet (10.2 m) shorter than the Great Pyramid
Khafre’s pyramid retains some of its original limestone casing at the apex, and so it is possible to imagine how the pyramids might have appeared in antiquity. Khafre also built the Great Sphinx, which is 66 feet high (20 m) and 240 feet long (73 m) and is part of
Khafre’s pyramid complex. It represents Ra-Harakhte, the sun god, as he rises in the east at dawn but the face of the Sphinx is a portrait of Khafre himself, and is contemporary with his pyramid. It was carved from an outcropping of limestone left after quarrying the stone for his father’s pyramid
Unfortunately, the great sphinx has deteriorated over the millennia and was extensively renovated in ancient times. More recently it was mutilated by the Sultan Mohammed an-Nasir in AD 1300; and lost its nose in 1798, when Napoleon’s soldiers used it for target practice
There have recently been a number of speculative theories concerning the age of the Great Sphinx, but no material evidence
exists to suggest that its history should be revised
On the wall of the burial chamber, there is an Arabic graffito that probably dates from the same time
It is not known when the casing stones of the pyramid were robbed, however, they were presumably still in place by 1646, when John Greaves, professor of Astronomy at the University of Oxford in his "Pyramidographia", wrote that, while its stones weren't as large or as regularly laid as in Khufu's, the surface was smooth and even
free of breaches of inequalities, except on the south
It was first explored in modern times by Giovanni Belzoni on March 2, 1818, when the original entrance was found on the north side of the pyramid and the burial chamber was visited. Belzoni had hopes of finding an intact burial. However, the chamber was empty except for an open sarcophagus and its broken lid on the floor
The first complete exploration was conducted by John Perring in 1837. In 1853, Auguste Mariette partially excavated Khafre's valley temple, and, in 1858, while completing its clearance, he managed to discover a
History
The pyramid was likely opened and robbed during the First Intermediate Period. During the Eighteenth Dynasty the overseer of temple construction robbed casing stone from it to build a temple in Heliopolis on Ramesses II’s orders. Arab historian Ibn Abd al-Salam recorded that the pyramid was opened in 1372 AD
On the wall of the burial chamber, there is an Arabic graffito that probably dates from the same time
It is not known when the casing stones of the pyramid were robbed, however, they were presumably still in place by 1646, when John Greaves, professor of Astronomy at the University of Oxford in his "Pyramidographia", wrote that, while its stones weren't as large or as regularly laid as in Khufu's, the surface was smooth and even free of breaches of inequalities, except on the south
It was first explored in modern times by Giovanni Belzoni on March 2, 1818, when the original entrance was found on the north side of the pyramid and the burial chamber was visited. Belzoni had hopes of finding an intact burial. However, the chamber was empty except for an open sarcophagus and its broken lid on the floor.
The first complete exploration was conducted by John Perring in 1837. In 1853, Auguste Mariette partially excavated Khafre's valley temple, and, in 1858, while completing its clearance, he managed to discover a diorite statue.
Construction
Like the Great Pyramid, a rock outcropping was used in the core. Due to the slope of the plateau, the northwest corner was cut 10 m (33 ft) out of the rock subsoil and the southeast corner is built up.
The pyramid is built of horizontal courses. The stones used at the bottom are very large, but as the pyramid rises, the stones become smaller, becoming only 50 cm (20 in) thick at the apex. The courses are rough and irregular for the first half of its height but a narrow band of regular masonry is clear in the midsection of the pyramid. At the northwest corner of the pyramid, the bedrock was fashioned into steps Casing stones cover the top third of the pyramid, but the pyramidion and part of the Apex (geometryapex) are missing.
The bottom course of casing stones was made out of pink granite but the remainder of the pyramid was cased in Tura Limestone. Close examination reveals that the corner edges of remaining casing stones are not completely straight, but are staggered by a few millimeters. One theory is that this is due to settling from seismic activity. An alternative theory postulates that the slope on the blocks was cut to shape before being placed due to the limited working space towards the top of the pyramid.
Interior
Passageways and chambers inside the Pyramid of Khafre.
Two entrances lead to the burial chamber, one that opens 11.54 m (38 ft) up the face of the pyramid and one that opens at the base of the pyramid. These passageways do not align with the centerline of the pyramid, but are offset to the east by 12 m (39 ft). The lower descending passageway is carved completely out of the bedrock, descending, running horizontal, then ascending to join the horizontal passage leading to the burial chamber
One theory as to why there are two entrances is that the pyramid was intended to be much larger with the northern base shifted 30 m (98 ft) further to the north which would make Khafre’s pyramid much larger than his father’s. This would place the entrance to the lower descending passage within the masonry of the pyramid. While the bedrock is cut away farther from the pyramid on the north side than on the west side, it is not clear that there is enough room on the plateau for the enclosure wall and pyramid terrace. An alternative theory is that, as with many earlier pyramids, plans were changed and the entrance was moved midway through construction
There is a subsidiary chamber, equal in length to the c.412"-long King's Chamber of the Khufu pyramid] that opens to the west of the lower passage, the purpose of which is uncertain. It may be used to store offerings, store burial equipment, or it may be a serdab chamber. The upper descending passage is clad in granite and descends to join with the horizontal passage to the burial chamber
The burial chamber was carved out of a pit in the bedrock. The roof is constructed of gabled limestone beams. The chamber is rectangular, 14.15 m by 5 m (46.4 ft x 16 ft), and is oriented east-west. Khafre’s sarcophagus was carved out of a solid block of granite and sunk partially in the floor, in it, Belzoni found bones of an animal, possibly a bull. Another pit in the floor likely contained the canopic chest, its lid would have been one of the pavement slabs
pyramid of menkaura
Menkaura 2532-2503 BC
Khafre’s son, Menkaura built the third pyramid at the Giza necropolis (cem¬etery). With an original height of 228 feet (70 m), it is less than half the height of the pyramid built by his grandfather, Khufu. The lower layers consist of red granite from Aswan and the upper courses were originally made of gleaming white limestone
Coordinates: 29°58′21″N 31°07′42″E
Type True Pyramid
Height 65.5 metres (215 ft)
Base 103.4 metres (339 ft)
Menkaure's pyramid had an original height of 65.5 metres (215 feet) and was the smallest of the three major pyramids at the Giza Necropolis. It now stands at 61 m (204 ft) tall with a base of 108.5
m. Its angle of incline is approximately 51°20′25″. It was constructed of limestone and granite. The first sixteen courses of the exterior were made of granite. The upper portion was cased in the normal manner with Tura limestone. Part of the granite was left in the rough. Incomplete projects such as this pyramid help archaeologists understand the methods used to build pyramids and temples. South of the pyramid of Menkaure are 3 satellite pyramids, none of which appear to have been completed. The largest is made partly of granite, like the main pyramid. Neither of the other 2 progressed beyond the construction of the inner core
Pyramid of Djoser
Coordinates: 29°52′16.56″N 31°12′59.02″E
Constructed 2667–2648 BC[1]
Type Step Pyramid
Height 62 metres (203 ft)
Base 125.27 metres (411 ft) (larger)
109.12 metres (358 ft) (smaller)
The Pyramid of Djoser (or Zoser), or step pyramid (kbhw-ntrw in Egyptian) is an archeological remain in the Saqqara necropolis, Egypt, northwest of the city of Memphis. It was built during the 27th century BC for the burial of Pharaoh Djoser by Imhotep, his vizier. It is the central feature of a vast mortuary complex in an
enormous courtyard surrounded by ceremonial structures and decoration
This first Egyptian pyramid consisted of six mastabas (of decreasing size) built atop one another in what were clearly revisions and developments of the original plan. The pyramid originally stood 62 metres (203 ft) tall, with a base of 109 m × 125 m (358 ft × 410 ft) and was clad in polished white limestoneThe step pyramid (or proto-pyramid) is considered to be the earliest large-scale cut stone construction although the nearby enclosure known as Gisr el-mudir would seem to predate the complex
Djoser was the first or second king of the 3rd Dynasty (ca. 2667 to 2648 BC) of the Egyptian Old Kingdom (ca. 2686 to 2125 BC) He is believed to have ruled for 19 years or, if the 19 years were biennial taxation years, 38 years. He reigned long enough to allow
Djoser is best known for his innovative tomb, which dominates the Saqqara landscape In this tomb he is referred to by his Horus name Netjerykhet; Djoser is a name given by New Kingdom visitors thousands of years later. Djoser’s step pyramid is astounding in its departure from previous architecture. It sets several important precedents, perhaps the most important of which is its status as the first monumental structure made of stone. The social implications of such a large and carefully sculpted stone structure are staggering The process of building such a structure would be far more labor-intensive than previous monuments of mud-brick. This suggests that the state, and therefore the royal government had a new level of control of resources, both material and human.Also, from this point on, kings of the Old Kingdom are buried in the North, rather than at Abydos. Furthermore, although the plan of Djoser’s pyramid complex is different than later complexes, many elements persist and the step pyramid sets the stage for later pyramids of the 4th, 5th, and 6th Dynasties, including the great pyramids at Giza Finally, another intriguing first is the identification of the architect Imhotep, who is credited with the design and construction of the complex
Step Pyramid
The superstructure of the Step Pyramid is six steps and was built in six stages, as might be expected with an experimental structure. The pyramid began as a square mastaba (one should note that this
designation as a mastaba is contended for several reasons) (M1) which was gradually enlarged, first evenly on all four sides (M2) and later just on the east side (M3). The mastaba was built up in two stages, first to form a four-stepped structure (P1) and then to form a six-stepped structure (P2), which now had a rectangular base on an east-west axis The fact that the initial mastaba was square has led many to believe that the monument was never meant to be a mastaba, as no other known mastabas had ever been square. When the builders began to transform the mastaba into the four step pyramid, they made a major shift in construction.[6] Like in the construction of the mastaba, they built a crude core of rough stones and then cased them in fine limestone with packing in between. The major difference is that in mastaba construction they laid horizontal courses, but for the pyramid layers, they built in accretion layers that leaned inwards, while using blocks that were both bigger and higher quality.[6] Much of the rock for the pyramid was likely quarried from the construction of the great trench. It is widely accepted that ramps would have been used to raise heavy stone to construct the pyramid, and many plausible models have been suggested.Apparatuses like rollers in which the heavy stone could be placed and then rolled were employed in transport
Pyramid substructure
Under the step pyramid is a labyrinth of tunneled chambers and galleries that total nearly 6 km in length and connect to a central shaft 7 m square and 28 m deep These spaces provide room for the king’s burial, the burial of family members, and the storage of goods and offerings The entrance to the 28 m shaft was built on the north side of the pyramid, a trend that would remain throughout the Old KingdomThe sides of the underground passages are limestone inlaid with blue faience tile to replicate reed matting. These “palace façade” walls are further decorated by panels decorated in low relief that show the king participating in the Heb-sed Together
these chambers constitute the funerary apartment that mimicked the palace and would serve as the living place of the royal ka On the east side of the pyramid eleven shafts 32 m deep were constructed and annexed to horizontal tunnels for the royal harem (The existence of this "harem" is debated) These were incorporated into the preexisting substructure as it expanded eastward. In the storerooms along here over 40,000 stone vessels were found, many of which predate Djoser These would have served Djoser’s visceral needs in the afterlife. An extensive network of underground galleries was located to the north, west and south of the central burial chamber and crude horizontal magazines were carved into thes
The Red Pyramid of Dahshur
Snofrus Red Pyramid in Dahshur (2).jpg
Sneferu
Type True Pyramid
Height 105 metres (344 ft)
Base 220 metres (722 ft)
Slope 43°22'
This article is about the pyramid. For the novel by Rick Riordan, see The Red Pyramid (novel). For the Silent Hill monster, see Pyramid Head.
The Red Pyramid, also called the North Pyramid, is the largest of the three major pyramids located at the Dahshur necropolis. Named for the rusty reddish hue of its red limestone stones, it is also the third largest Egyptian pyramid, after those of Khufu and Khafra at Giza. It is also believed to be the Egypt's first successful attempt at constructing a "true" smooth-sided pyramid. Local residents refer
History
The Red Pyramid was not always red. It used to be cased with white Tura limestone, but only a few of these stones now remain at the pyramid's base, at the corner. During the Middle Ages much of the white Tura limestone was taken for buildings in Cairo, revealing the red limestone beneath
The Red Pyramid was the third pyramid built by Old Kingdom Pharaoh Sneferu, and is located approximately one kilometer to the north of the Bent Pyramid. It is built at the same shallow 43 degree angle as the upper section of the Bent Pyramid, which gives it a noticeably squat appearance compared to other Egyptian pyramids of comparable scale. Construction is believed to have begun during the thirtieth year of Sneferu's reign. Egyptologists disagree on the length of time it took to construct. Based on quarry marks found at various phases of construction, Rainer Stadelmann estimates the time of completion to be approximately 17 years while John Romer, based on this same graffiti, suggests it took only ten years and seven months to build
Archaeologists speculate its design may be an outcome of engineering crises experienced during the construction of Sneferu's two earlier pyramids. The first of these, the Pyramid at Meidum, collapsed in antiquity, while the second the Bent Pyramid had the angle of its inclination dramatically altered from 54 to 43 degrees part-way through construction
Some archaeologists now believe that the Meidum pyramid was the first attempt at building a smooth-sided pyramid, and that it may have collapsed when construction of the Bent Pyramid was already well underway — and that the pyramid may by then have already begun to show alarming signs of instability itself, as evidenced by the presence of large timber beams supporting its inner chambers. The outcome of this was the change in inclination of the Bent Pyramid, and the commencement of the later Red Pyramid at an inclination known to be less susceptible to instability and therefore less susceptible to catastrophic collapseMeidum pyramid
Coordinates: 29 ° 23'17 "N 31 ° 09'25" E
Type Step pyramid
Height 65 metres (213 ft) (ruined)
Base 144 metres (472 ft)
Slope 51 ° 50'35
The pyramid at Meidum is thought to originally have been built for Huni, the last pharaoh of the Third Dynasty, and was continued by Sneferu. The architect was a successor to the famous Imhotep, the inventor of the stone built pyramid. The collapse of the pyramid is likely due to the modifications made to Imhotep's pyramid design as well as the decisions taken twice during construction to extend the pyramid. Because of its unusual appearance, the pyramid is called el-heram el-kaddaab (Pseudo
The second extension turned the original step pyramid design into a true pyramid by filling in the steps with limestone encasing. While this approach is consistent with the design of the other true pyramids, Meidum was affected by construction errors. Firstly, the outer layer was founded on sand and not on rock, like the inner layers. Secondly, the inner step pyramids had been designed as the final stage. Thus the outer
Some who believe the pyramid not to have collapsed until the New Kingdom, but there are a number of facts contradicting this theory. The Meidum Pyramid seems never to
By the time it was investigated by Napoleon's Expedition in 1799 the Meidum Pyramid had its present three steps. It is commonly assumed the pyramid still had five steps in the fifteenth century and was gradually falling further into ruin, because al-Maqrizi described it as looking like a five-stepped mountain, but Mendelssohn claimed this might be the result of a loose translation 
Excavations
Map of ancient Lower Egypt showing the location of Meidum
The Meidum Pyramid was excavated by John Shae Perring in 1837, Lepsius in 1843 and then by Flinders Petrie later in the nineteenth century, who located the mortuary temple, facing to the east. In 1920 Ludwig Borchardt studied the area further, followed by Alan Rowe in 1928 and then Ali el-Kholi in the 1970s.
Mortuary Temple of Meidum Pyramid
In its ruined state, the structure is 213 feet (65 meters) high, and its entrance is aligned north-south, with the entrance in the north, 66
Flinders Petrie was the first Egyptologist to establish the facts of its original design dimensions and proportions In its final form it was 1100 cubits of 0.523 m around by 175 Cubits high, thus showing the same proportions as the Great Pyramid at Giza, and therefore the same circular symbolism. Petrie wrote in the 1892 excavation report [4] that "We see then that there is an exactly analogous theory for the dimensions of Medum [sic] to that of the Great Pyramid; in each the approximate ratio of 7: 44 is adopted, as referred to the radius and circle ... "These proportions equated to the four outer faces sloping in by precisely 51.842 ° or 51 ° 50 '35", which would have been understood and expressed by the Ancient Egyptians as a seked slope of 5½ palms
Mastabas
Located nearby is a mastaba of an unknown noble, the burial chamber of which can be entered via a robber's tunnel. This tunnel is steep, extremely narrow and confined. Once traversed however, the chamber and hallway are relatively spacious, and contain the first example of a red granite sarcophagus known in antiquity. Another mastaba is the Mastaba of Nefermaat
The stone sarcophagus remains within the unmarked and undecorated granite built chamber. The tunnel goes further on into the darkness, and as of 2002 remains
The pyramid of Senusret II
The pyramid was built around a framework of limestone radial arms, similar to the framework used by Senusret I. Instead of using an infill of stones, mud and mortar, Senusret II used an infill of mud bricks before cladding the structure with a layer of limestone
The Pyramid of Amenemhet III
He built his first pyramid at Dahshur (the so-called "Black Pyramid"), but there were construction problems and it was
abandonedAround Year 15 of his reign the king decided to build a new pyramid at Hawara, near the Faiyum The pyramid at Dahshur It was used as burial ground for several royal women
The mortuary temple attached to the Hawara pyramid and may have been known to Herodotus and Diodorus Siculus as the praised it as a wonder of the world. The king's pyramid at Hawara 
