Northern Pyramid of Zawyet El Aryan

The Unfinished Northern Pyramid of Zawyet El Aryan, also known as Pyramid of Baka and Pyramid of Bikheris is the term archaeologists and Egyptologists use to describe a large shaft part of an unfinished pyramid at Zawyet El Aryan in Egypt. Archaeologists are generally of the opinion that it belongs to the early or the mid-4th Dynasty (2613–2494 BC) during the Old Kingdom period. The pyramid owner is not known for certain and most Egyptologists, such as Miroslav Verner, think it should be a king known under his hellenized name, Bikheris, perhaps from the Egyptian Baka. In contrast, Wolfgang Helck and other Egyptologists doubt this attribution.

Description

Location
The pyramid of Baka is located in the Northern sector of Zawyet El Aryan, around 8 km (5.0 mi) south-west of Giza, in the North-Eastern corner of the military restricted area.

Superstructure
Next to nothing is known about the superstructure of the pyramid as indeed only the square base, made of natural bedrock, was finished. It measures 200 m × 200 m (660 ft × 660 ft) and shows traces of a surrounding pedestal, preserved for the limestone covering. The exact planned size and slope cannot be evaluated because no covering blocks nor any pyramidion were ever found and pyramid pedestals were always larger than the base of the pyramid itself. Thus, it cannot be excluded that the planned size of the pyramid could have been noticeably smaller.

Substructure
The substructure consists of a T-shaped shaft, the corridor of which is on a South to North axis and the chamber on an East to West axis. The complete shaft has no remaining ceiling, and it is possible that it never had any. A steep stairway leads down to the chamber. At half its length the stairway is interrupted by a horizontal surface of unknown purpose. The shaft walls are smooth but were never covered with stones and the chamber was never completed. Only the floor of the chamber was finished and covered with massive granite blocks, each being 4.5 m (15 ft) long and 2.5 m (8.2 ft) thick and weighing up to 9 tons each. Close to the Western end of the chamber an unusual vat was discovered. It has an oval shape and was embedded into one of the stone blocks constituting the chamber floor. It seems that the vat was brought into the chamber sometime during the construction of the foundations since it is too big to fit through the passageway leading to the chamber.