The structure known for being a tomb for an Egyptian pharaoh is the pyramid, with the Great Pyramid of Giza being the most famous example. Built during the Fourth Dynasty of the Old Kingdom, it served as the burial site for Pharaoh Khufu (Cheops) and is one of the Seven Wonders of the Ancient World. Pyramids were constructed as elaborate burial complexes, often filled with items believed to be needed in the afterlife. The architectural techniques and alignment with celestial bodies reflect the Egyptians' sophisticated understanding of engineering and their beliefs about life after death.