The Great Pyramid at Giza has been studied for centuries, yet new scans of the 4,500-year-old monument suggest it may still be hiding a concealed passageway that functions like a secret doorway. Fresh ...

Fresh scans of the Pyramid of Menkaure on the Giza Plateau have revealed hidden internal voids that may line up with an unknown passageway, raising the possibility that a long-concealed entrance is ...