The Great Pyramid of Khufu is the tallest, largest and most enigmatic of all the Pharaonic constructions. 45 centuries later, the mystery lives on: how was the pyramid actually built? French architect Jean-Pierre Houdin has been investigating. He has scrutinized the monument with the eye of an expert, as if he were going to rebuild the whole thing himself. With the help of new technology, he now offers a revolutionary solution. Has he managed to solve the mystery of the Great Pyramid?