- The first Egyptian pyramid was built for Pharaoh Djoser and designed by Imhotep, taking the form of a step pyramid to allow the pharaoh's soul to ascend to heaven. - After Egypt came under rule from Napata, pyramid building revived in Sudan, with over 200 constructed. - Pyramids were designed with symbolic meanings, representing the primordial mound from which Egypt was created and the sun's rays, being faced with reflective limestone.