Lost pyramids and buried treasures lie beneath Egypt's sands, and using the latest cutting-edge satellite technology, experts reveal what this mysterious lost world looked like thousands of years ago. Using sophisticated CGI re-creations, this documentary follows the explorations of archaeologist Sarah Parcak, who has developed satellite technology to pinpoint the locations of thousands of buried Egyptian cities, temples and tombs. This episode is an hour expansion of "Egypt: What Lies Beneath" from the Discovery Channel series Curiosity, S01E11.