A revolutionary book that explains the most enigmatic and fascinating wonder of the ancient world: the Pyramids of Egypt. In 1993, German robotics engineer Rudolf Gatenbrink discovered a sealed door within the Great Pyramid of Giza--a door left unopened for 4,500 years. With this discovery, Robert Bauval--who spent the decade prior to the discovery researching the pyramids--and Adrian Gilbert used astronomical data to reveal that more...