Lost Ancient High Technology Of Egypt: Traveler's Edition

The history of Egypt is of course a rich one dating back at least 5000 years to the first of the Pharaohs who created what was to be remembered through their works and deeds, especially in stone. Among their most famous achievements are the Great Pyramids of the Giza Plateau and the Sphinx. However, what if evidence strongly suggests that some of these great works were in fact created thousands of years before the dynastic Egyptians, and that the Pharaohs simply inherited and renamed them? ...