Pyramid of Khentkaus I

The pyramid of Khentkaus I or step tomb of Khentkaus I is a Fourth Dynasty two-stepped tomb built for the Queen Mother Khentkaus I in Giza. The tomb, built in two phases coinciding with its two steps, was originally known as the fourth pyramid of Giza. In the first phase, a nearly square block of bedrock, around which the stone had been quarried for the Giza pyramids, was utilised to construct her tomb and encased with fine white Tura limestone. In the second phase, most likely in the Fifth Dynasty, her tomb was enlarged with a large limestone structure built on top of the bedrock block. The Egyptologist Miroslav Verner suggests that this may have been intended to convert her tomb into a pyramid, but was abandoned as a result of stability concerns. South-west of the tomb was a long boat pit, which housed the Night boat of Re. A companion day boat has not been found. A chapel was built into the tomb superstructure, with a large granite entrance bearing the queen's name and titles. One of her titles was of particular interest because it had not been known of prior to its discovery at her tomb. The chapel connected to a three-niched statuary room to its west, and a long hall to its north. The hall to the north housed two pink granite false doors, below one of which was a sloped passage into the tomb substructure comprising an antechamber and a bisected burial chamber. In the east

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