Red Pyramid
c. 2600 BC pyramid near Cairo, Egypt, built by pharaoh Sneferu
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The pyramid is named for the rusty reddish hue of its limestone, but it was not originally red – it was clad in white Tura limestone. During the Middle Ages, much of the cladding was taken for buildings in Cairo, exposing the red limestone. Only a few white blocks remain, at the pyramid's base.
Local residents refer to the Red Pyramid as el-heram el-watwaat, meaning the Bat Pyramid.
History
The Red Pyramid was the third pyramid built by Old Kingdom Pharaoh Sneferu, and was built 2575–2563 BCE. The Red Pyramid is located approximately one kilometre (0.62 mi) 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 (c. 2590 BCE). 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 Rolf Krauss, based on this same graffiti, suggests a period of construction of 10–11 years, an estimate later supported by John Romer.
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 the construction due to complications that accrued during the three construction phases.
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 under way – and that the pyramid may by then have already begun to show alarming signs of instability itself, as evident 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 collapse.
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Modern day
The Red Pyramid is 105 metres (344 ft) high, and 220 metres (720 ft) wide. Fragments of a rare pyramidion, or capstone, for the Red Pyramid were uncovered and reconstructed, and are now on display at the Red Pyramid's site at Dahshur. However, whether the fragments were actually ever part of a pyramidion is unclear, as the reconstruction's angle of inclination differs from that of the pyramid for which it was apparently intended.
The Red Pyramid, along with the Bent Pyramid, was closed to tourists for many years because of a nearby army camp. It is now usually open for tourists and a somewhat intrusive ventilation system has been installed which pipes air down the entrance shaft to the interior chambers. Visitors climb steps cut in or built over the stones of the pyramid to an entrance high on the north side. A passage, 3 feet (0.91 m) in height and 4 feet (1.2 m) wide, slopes down at 27° for 200 feet (61 m) to a short horizontal passage leading into a chamber whose corbelled roof is 40 feet (12 m) high and rises in eleven steps. At the southern end of the chamber, but offset to the west, another short horizontal passage leads into the second chamber. This passage was probably closed at one time and the offset was a measure intended to confuse potential tomb robbers. The second chamber is similar to the first and lies directly beneath the apex of the pyramid.
High in the southern wall of the second chamber is an entrance, now reached by a large wooden staircase built for the convenience of tourists. This gives onto a short horizontal passage that leads to the third and final chamber with a corbelled roof 50 feet (15 m) high. The first two chambers have their long axis aligned north-south, but this chamber's long axis is aligned east-west. Unlike the first two chambers, which have fine smooth floors on the same level as the passages, the floor of the third chamber is very rough and sunk below the level of the access passage. It is believed that this is the work of tomb robbers searching for treasure in what is thought to have been the burial chamber of the pyramid. The ceiling and walls are also blackened with soot which may have been caused by torches and possibly by the heating and smashing of the sarcophagus and limestone floor by the tomb robbers.