The Great Pyramid of Giza is the oldest and the largest pyramid in Egypt. It was built for the Pharaoh Khufu (Cheops in Greek) and took 20 years to complete. The length of each side at the base averages 755.75 feet (230 metres). Its original height was 481.4 feet (147 metres) and present height is 455.4 feet (138.8 metres). It is made of about 2.5 million blocks of stone.
