See how a massive ancient Egyptian temple complex was saved from rising water by cutting it into over 800 separate blocks and reassembling it on higher ground. Learn more tonight 10/9c on 'Egypt with the World's Greatest Explorer.' | National Geographic TV

Abu Simbel was carved straight into a mountain by Pharaoh Ramses II to show the world his power—and it worked. Inside, the sun aligns perfectly twice a year to light up Ramses and the gods—except Ptah, god of the underworld, who stays in the dark. In the 1960s, this entire masterpiece was cut into over 1,000 pieces and moved to avoid being swallowed by the Nile after the Aswan Dam was built. Not just ancient greatness, but a modern engineering miracle too. If you have already taken a DNA test in