12 Most Amazing Lost Cities in the World

The breathtaking city of Petra was a vibrant trading hub that vanished from most maps in the seventh century A.D. It lay beneath a thousand years of dust and debris when, in 1812, a Swiss scholar disguised as a Bedouin trader identified the ruins as the ancient Nabataean capital.Spread throughout a series of remote desert canyons in southern Jordan, Petra arose more than 2,000 years ago at the