The Step Pyramid at Saqqara

King Djoser's step pyramid.

The diagram shows the three design changes made during construction. 1st the mastaba, the traditional tomb of the pharaohs. 2nd the four step pyramid. 3rd enlarged to make a six step pyramid. 

Saqqara has the distinction of being the site of the first large stone structure built in the world. The place where humans began to strive for the impossible, where the imagination gained the power to transform reality. 

The first tombs of the pharaohs were large, unimpressive, bunker affairs called mastabas. They were made from sun dried mud brick and most have long since crumbled to dust. This all changed around 2630 BC with the erection of the step pyramid. It was made for the pharaoh, Djoser and began as a normal mastaba, but was subsequently enlarged by adding one mastaba on top of another until it consisted of six terraces some 200ft (60 meters) high. The surface was originally encased in smooth white limestone which must have caught the sun light and reflected its rays. 

The chap responsible for the step pyramid was Imhotep, Djoser's vizier. He is credited as being the inventor of building in stone and was a man of many talents - Architect, physician, master sculpture, scribe, and astronomer. He must be the first true genius in recorded history and his impression on the Egyptians was profound because later generations revered him as a god of wisdom.