The architecture of ancient Egypt evolved over three main periods - the Archaic Period saw the unification of Egypt and early stone architecture, the Old Kingdom established absolute kingship and saw the construction of pyramids along the Nile, and the New Kingdom built large temples along the Nile connected by vast axes with Thebes emerging as the new capital city. Burial monuments were a core part of Egyptian architecture from early pyramid complexes like that of Zoser to later temples and mortuary structures built for pharaohs like Hatshepsut.