Lost High Technology Of Ancient Egypt Updates

There is mounting scientific evidence that more than 6000 years before the appearance of the dynastic Egyptians a very advanced technological civilization had been destroyed by cataclysmic events, especially in the area of the Giza Plateau. What they left behind are some of the greatest construction projects ever undertaken, including the Pyramids of Giza, more than 20 stone boxes weighing 100 tons a piece in the tunnels of Saqqara, and an unfinished obelisk at Aswan that if completed would have weighed an astonishing 1200 tons.