The Bahamas are known for pink-sand beaches, insanely cool private islands, pigs that swim and great diving. And near Nassau, we've found a new treasure that's definitely worth diving for -- an artwork that is, according to its creator, the largest single underwater sculpture in the world. The sculpture, called "Ocean Atlas," is a rendition of a Bahamian girl that measures over 16 feet high and weighs more than 60 tons.