There are many theories about where Atlantis was—in the Mediterranean, off the coast of Spain, even under what is now Antarctica. "Pick a spot on the map, and someone has said that Atlantis was there," says Charles Orser, curator of history at the New York State Museum in Albany. "Every place you can imagine." Plato said that Atlantis existed 9,000 years before his own time and the story was passed down by poets, priests and others. But Plato's writings are the only known records Of its existence,