Atlantis

At this point it is fairly easy to write Atlantis off as nothing more than a myth, but this legendary city has been a source of speculation ever since the philosopher Plato first wrote about it in 360 B.C. Described by Plato as an advanced civilization and formidable naval power, Atlantis is said to have conquered much of Europe before sinking into the sea as the result of some kind of environmental disaster. While Plato’s story is seen by most as a work of fiction, his description of a massive civilization years ahead of its time technologically has captured the imaginations of countless writers and would-be adventurers, and there have been numerous expeditions launched in search of the city. Perhaps the most infamous occurred at the beginning of WWII, when the Nazis supposedly organized a journey to Tibet with the hope of finding remnants of Atlantaen culture.