The most important structure of the period, however, is the funerary complex of Djoser (reg c. 2630–c. 2611 bc), which marks the first appearance of monumental stone architecture in Egypt. Its central element is a massive stepped pyramid (140˙118˙60 m; see Pyramid, fig. 1) of limestone masonry constructed at the instigation of the architect Imhotep, who was later deified for his achievement. Originally conceived as a mastaba tomb, the design was modified six times before finally emerging as a six-stepped pyramid with a complex suite of subterranean funerary apartments, including a granite-lined burial chamber and walls panelled in small blue faience tiles (see Egypt, ancient, fig. 101); one panel has been reconstructed in the Egyptian Museu...