About 2,500 years ago, the Greek historian Herodotus wrote that "the pyramids are the tombs of kings" based on what the Egyptians said at the time; in buildings such as the Great Pyramid of Giza Among them, there is a stone box believed to be a sarcophagus. However, what Herodotus wrote was just a rumor, and no mummy was ever found in the pyramid's stone chests.