The lure of finding treasure is an impenetrable part of human nature, whether one is a pirate or a modern-day treasure hunter. Spanish galleons were an enviable target for pirates, as their heavily laden cargoes included vast quantities of gold, silver, jewels, and other New World riches. Pirates and hurricanes were a galleon's biggest enemy and if a vessel managed to elude both, it was lucky. For centuries, individuals have been hunting for treasure lost at sea and legendary wealth buried on land, and when that treasure is found, it's nothing less than spectacular.