The Great Sphinx of Giza is a mythical creature with the body of a lion and a human head that stands on the Giza Plateau. It is located in the north and below the pyramids, although the date of its construction is uncertain, the head of the Great Sphinx now is believed to be that of the Pharaoh Khafra. It is the largest monolith statue in the world, standing 73.5 meters (241 ft) long, 19.3 meters (63 ft) wide, and 20.22 m (66.34 ft) high and the oldest known monumental sculpture. It is commonly believed to have been built by ancient Egyptians of the Old Kingdom during the reign of the Pharaoh Khafra (c. 2558–2532 BC).