Book excerpt: The vast hidden world of sunken treasure. With less than 2% of the world's ocean depths explored to date, a myriad of unimagined mysteries and treasures await discovery. Treasure Lost at Sea chronicles the excitement of underwater archaeology and search for treasure. The book recounts the major periods and geographic locations of shipwrecks. Chapters include: The classical world Scandinavian shipwrecks The age of discovery The Spanish galleons Bermuda, graveyard of ships Privateers, pirates and mutineers Deep-water shipwrecks (Bismarck, Titanic, and others) Port Royal: The sunken city The lively text details the potential treasure as well as the political turf wars, technological limitations, and forces of nature that threaten any mission's success. Humanity's long history of exploration, civilization, trade and war is littered with sunken vessels. Colorful and richly illustrated, Treasure Lost at Sea will inspire a new generation of underwater archaeologists.