The ancient civilization known for its pyramids is the Egyptians, particularly the civilization centered around the Nile River. The most iconic of these structures are the Pyramids of Giza, including the Great Pyramid, which is one of the Seven Wonders of the Ancient World. The pyramids served as monumental tombs for pharaohs and were part of a larger complex that included temples and smaller tombs. Built during the Old and Middle Kingdom periods, these structures exemplify the Egyptians' architectural prowess and their beliefs in the afterlife, reflecting their societal and spiritual values.