Pyramid of Khafre

The pyramid of Khafre or of Chephren is the middle of the three Ancient Egyptian Pyramids of Giza, the second tallest and second largest of the group. It is the only pyramid out of the three that still has cladding at the top. It is the tomb of the Fourth-Dynasty Pharaoh Khafre (Chefren), who ruled c. 2558−2532 BC.

The pyramid has a base length of 215.5 m (706 ft) or 411 cubits and rises up to a height of 136.4 metres (448 ft) or 274 cubits. It is made of limestone blocks weighing more than 2 tons each. The slope of the pyramid rises at a 53° 08′ angle, steeper than its neighbor, the pyramid of Khufu, which has an angle of 51° 50′ 24″. Khafre’s pyramid sits on bedrock 10 m (33 ft) higher than Khufu’s pyramid, which makes it appear to be taller.

Pyramid of Khafre - Giza

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 was built up.

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 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 the 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.

Pyramid of Khafre | The Great Sphinx & Limestone Casing

Arab historian Ibn Abd al-Salam recorded that the pyramid was opened in 1372. 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 rest of the casing stones were robbed; 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 were not as large or as regularly laid as in Khufu’s, the surface was smooth and even free of breaches or inequalities, except on the south.

The pyramid was first explored in modern times by Giovanni Belzoni on March 2, 1818, when the original entrance was found on the north side. Belzoni had hopes of finding an intact burial but 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 of Khafre.

Two entrances lead to the burial chamber; one is located 11.54 m (37.9 ft) up the northern face of the pyramid, and the other at the base of the pyramid on the same axis. These pᴀssageways do not align with the centerline of the pyramid but are offset to the east by 12 m (39 ft). The lower descending pᴀssageway is carved completely out of the bedrock, descending, running horizontal, then ascending to join the horizontal pᴀssage leading to the burial chamber.

One theory as to why there are two entrances is that the pyramid’s northern base was intended to be 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 pᴀssage 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.

Khafre | Old Kingdom, Pyramid Builder, & Pharaoh | Britannica

There is a subsidiary chamber, equal in length to the King’s Chamber in Khufu’s pyramid, that opens to the west of the lower pᴀssage, 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 pᴀssage is clad in granite and descends to join with the horizontal pᴀssage 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 by 5 m (46.4 by 16.4 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.

There are two small rectangular holes in the walls of the burial chamber facing each other, greatly resembling the openings of the ‘air shafts’ found in the Great pyramid burial chambers.

In the 1960s, Luis Alvarez used muon transmission imaging to search for hidden chambers in the pyramid. Alvarez ᴀssembled a team of physicists and archeologists from the United States and Egypt. The recording equipment was constructed and the experiment carried out, though it was interrupted by the 1967 Six-Day War. After the war, the effort continued, recording and analyzing the penetrating cosmic rays until 1969, when he reported to the American Physical Society that no chambers had been found in the 19% of the pyramid surveyed.

 

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