Final answer:
Imhotep is the architect associated with the Mortuary Complex of Djoser, known for creating a step pyramid by stacking stone mastabas.
Step-by-step explanation:
Imhotep is ancient Egyptian history, remembered as a polymath who served under Pharaoh Djoser. Imhotep's contribution to Egyptian architecture is immense, as he is credited with designing the Mortuary Complex of Djoser at Saqqara, a structure that marked a significant innovation in construction and design. This complex is known for its step pyramid, which was conceived by Imhotep through the novel idea of stacking stone mastabas to create a towering structure. This was the precursor to the smooth-sided pyramids that would come to symbolize ancient Egypt, such as those at Giza.
The Mortuary Complex of Djoser also contains an underground burial chamber that communicates the king's divine nature to the people. Imhotep's success in constructing this complex thus provided a template for later monumental constructions and signified the pharaoh's godlike status in a tangible form. Imhotep's architectural masterpiece predates other significant constructions such as the mortuary temple of Hatshepsut, which was the first of its kind to be built in that region.