Around 360 B.C., the Greek philosopher Plato recorded the legend of Atlantis, the great civilization swallowed by the sea. For centuries, adventurers and archaeologists have searched far and wide for the lost city. But now, an international team of experts has uncovered evidence of an epic catastrophe that wiped out a technically advanced and wealthy Mediterranean civilization 3,500 years ago. Could it be the fabled city of Atlantis? Host Adam Mastrelli details the cataclysmic event that changed history and inspired a myth.

According to many experts, the Vinland map was created 50 years before Christopher Columbus sailed west, but amazingly, it features the coast of North America. If it's authentic, it will rewrite history as we know it. Join the investigation as our experts look for clues in the fabric of the map. They'll test a theory that the document is based on Viking maps created centuries before Columbus was born, and they'll name a 1930s scholar who some claim faked the whole thing. Finally, we reveal the true story, thanks to a stunning 2018 discovery.