It's history's most famous lost city: Atlantis, the island kingdom that's baffled explorers for centuries. Some say Atlantis is a myth, while others insist it was a very real place wiped out thousands of years ago. Finding Atlantis would not only be the archaeological coup of this century, but perhaps for all time. Is Atlantis a real place, and if so, where could it be?

The legendary ancient ruler who amassed a fortune estimated to be worth 120 trillion in today's dollars--Genghis Khan--hid his riches so well that to this day no one has unearthed them. 800 years later the fate of his treasure remains a mystery. Where are Genghis Khan's buried riches?