Ever since Plato created the legend of the lost island of Atlantis, it has maintained a uniquely strong grip on the human imagination. For two and a half millennia, the story of the city and its catastrophic downfall has inspired people--from Francis Bacon to Jules Verne to Jacques Cousteau--to speculate on the island's origins, nature, and location, and sometimes even to search for its physical remains. It has endured as a part of the mythology of...