The Great Pyramid of Giza in Egypt is the oldest of the Seven Wonders of the Ancient World. It was built over four thousand years ago as a tomb site for the pharaoh Khufu in the 26th century. In Egyptian history, pyramids were built as monuments for the burial sites of pharaohs. They believed that these pyramid tombs would help pharaohs continue their journey to another world after death. The Great Pyramid of Giza is estimated to have taken twenty-seven years to build. Historians have found that workers used sleds and rope to carry blocks of stone in order to build the pyramids. The ability for men to create the Great Pyramid, which originally stood at 146.5 meters tall, without the use of technological advances is one of the many reasons why it is one of the Seven Wonders of the Ancient World.