FASCINATING VIDEO - IS THERE REALLY AN UNDERGROUND CIVILIZATION? Hollow earth, Inner Earth, Agartha, shangri-la, the lost city of Atlantis, El Dorado, the lost city of Gold. Which ever you choose to call it. Has the holy city of Agatha, as spoken about in legends really been found? Researchers claim the legends are all true. Since the beginning of time people have spoken of the ancient race of...