The Egyptologist acclaimed for re-dating the Great Sphinx at Giza sets his sights on one of the true mysteries of antiquity: the Great Pyramid of Giza. What is the Great Pyramid of Giza? Ask that basic question of a traditional Egyptologist, and you get the basic, traditional answer: a fancy tombstone for a self-important pharaoh of the Old Kingdom. This, Egyptologists argue, is the sole finding based on the data, and the only deduction supported...