In 1955, Egypt decided to build a dam at Aswan, to the south of its territories, to regulate the course of the Nile and allow agriculture to flourish more abundantly. This mammoth enterprise had the consequence of creating an enormous reservoir of water, Lake Nasser. Thousands of villages and archaeological sites were then inundated. Only a few were saved, the most famous being the temple of Abu Simbel. But who remembers all the other sites? What remains today? The Palais des Beaux-Arts collections tell us a little more.