Pyramids of Giza including a map and Pyramid List. How the Pyramids at Giza were built is one of Egypt's biggest mysteries. The Ancient Egyptians believed that when a pharaoh died he became Osiris, the king of the dead. They believed that for the dead pharaoh to. One of these subsidiary pyramids is known to be that of Amenemhat's cousin, Khaba II. Pyramids See the different shapes of pyramids. New data may come from the Scan Pyramids Mission, an initiative being undertaken by researchers at three germany bundeliga universities, the Heritage Innovation Preservation Institute and the Egyptian Ministry of Antiquities. With the red pyramid, Sneferu set the standard for all true pyramids to come. From the beginning of the Dynastic Era B.