The first buildings that people made have disappeared. They were probably made materials like mud, wood, and straw which rot away over time, The buildings that have remained up till novy were made of stone. Stone was not used for ordinary people's houses building in stone took a lot of effort. The Great Pyramid of Cheops in El Giza, Egypt, is made of stone. It is one of the oldest remaining buildings. was finished around 2560 BC. When it was new, it had a smooth layer of shiny white marble on its four sides. * was built as a tomb for the Egyptian pharaoh, Cheops. The ancient Egyptians believed that the souls of dead kings would survive their bodies were preserved. They laid the bodies of dead kings at the center of the pyramid. This pyramid is one of the most popular attractions in Egypt.