Imhotep, BC, is considered to be the first architect, engineer, and physician. Egyptologists ascribe to him the design of the Pyramid of Djoser at Saqqara in Egypt in 2630 – 2611 BC.
The step Pyramid of Saqqara, Djoser's pyramid and its surrounding mortuary complex is recognized as the first stone building in the world .Khufu Pharaoh of Ancient Egypt ( 2589 - 2566 BC) Dynasty 4
Step Pyramid of Djoser. The first pyramid ever built by the Egyptians, Djoser rises up 197 feet meters) with six steplike layers, one built on top of the other. The pyramid was constructed at Saqqara about years ago.