One of the world's most legendary and elusive treasures, sought after for centuries. . . An ancient mystery.A Lost Treasure.A Hidden City.An impossible location.An unimaginable adventure. Included in Aztec and Mayan legends, Conquistadors had heard rumors of its existence when exploring the New World, but never found it. During World War 2, Nazi inspired archaeologists were convinced they had pinpointed its location. They packed a U-Boat with supplies...