Inexplicable Egyptian archeology (video)

Hours of baffling advanced ancient stonework experts are still struggling to explain
(Ancient Enigmas, 6/20/20) In these strange ruins, advanced tool marks have been left behind. They show precision surfaces as if they were carved and shaped using modern machinery. Also, there are massive shafts. Another mystery is the vast distances that these monuments, some weighing several hundred tons, were moved from quarries. How could they efficiently shape hard stones like basalt, granite, and diorite? Ancient Egypt, Peru, Bolivia, Petra, and Easter Island contain enigmas and mysteriess in stone, which most conventional scholarship can`t explain. Some of these places seem to have been constructed using what we would call high-level machine technology. Could unknown advanced civilizations have existed before known ones?