The Great Sphinx is among the world’s largest sculptures, measuring some 240 feet (73 metres) long and 66 feet (20 metres) high. It features a lion’s body and a human head adorned with a royal headdress. The statue was carved from a single piece of limestone, and pigment residue suggests that the entire Great Sphinx was painted. According to some estimates, it would have taken about three years for 100 workers, using stone hammers and copper chisels, to finish the statue.