The Pyramids of Giza in Egypt mark a glorious time in human civilization. Located in the Giza Necropolis, just outside the city of Cairo, they were built by three Pharaohs of Ancient Egypt some 4500 years ago. Regarded as an architectural marvel, the Pyramids of Giza are one of the Seven Wonders of the World. The three Pyramids of Giza were built as tombs by three kings (or Pharaohs) of ancient Egypt. They were constructed on the Giza plateau during the fourth dynasty of Ancient Egypt's Old Kingdom by the Pharaohs Khufu, his di lui son di lui Khafre, and Menkaure, son of Khafre. The Giza plateau also has many other smaller pyramids and temples, as well as monuments like the Great Sphinx of Giza.