The three most important pyramids of Egypt are the Pyramids of Giza: the Great Pyramid of Cheops, the pyramid of Chephren, and the pyramid of Mykerinos. They were built as tombs for pharaohs and are located near Cairo in the Giza plateau. The pyramids, especially the Great Pyramid of Cheops, are among the most famous and impressive structures ever built and are a major tourist destination, though tourism has decreased recently due to security concerns.