Egyptian architecture is one of the most influential civilizations throughout history. It brought about the vast array of diverse structures and great architectural monuments along the Nile which includes pyramids and temples.
More about this
Wood at that time was very scarce. Two predominant building materials used in ancient Egypt were sunbaked mud brick and stone (mainly limestone). However, there was some sandstone and granite in considerable quantities.
Stones were generally reserved for tombs and temples while bricks were used for royal palaces, fortresses, the walls of temple and towns, and for subsidiary buildings in temple complexes.