Drain the Oceans: The Mississippi River

North America‘s Great Lakes are the largest system of free fresh water on earth, wielding huge influence on the continent. Over 34 million people live by their shores in some of greatest cities in the world. This groundbreaking television program pulls a virtual plug on the huge lakes, using computer-generated imagery to reveal hidden secrets of their human history and changing geological past.

Infamous disappearances of ships and aircrafts, stories of lives lost — they’re all part of the legend of the 500,000-square-mile expanse of the Atlantic Ocean known as the Bermuda Triangle. In this one-hour special, National Geographic Channel explores the area’s ominous reputation by draining the water from it to see what exactly lies below the surface of the mythical triangle. With the aid of data from sophisticated sonar surveys, see what the ocean floor looks like below the Bermuda Triangle. Witness what strange geological features will be revealed and whether they will shed light on the mysterious occurrences that have been documented within the boundaries of this area of ocean.

Computer-generated imagery and other visualization techniques reveal how it would look if all the water was removed from RMS Titanic's final resting place.

What lies beneath the ocean? World War Two left a great number of ships and submarines hidden beneath the waves. Now, as the oceans drain, each vessel reveals its secrets through new data-based 3D reconstructions. From the Arizona in Pearl Harbour’s shallows, whose destruction brought America into the war, to Nazi super ship the Bismarck and its mysterious end three miles down. From the flaming merchant ships secretly torpedoed by U-boats off tourist beaches of the USA, to the covert inventions of the Allies' costly D-Day beachhead, and lastly to the troopship Leopoldville sunk with the needless deaths of 400 soldiers. Drain The Ocean exposes the truth.

Explore the ruins of Port Royal, once a flourishing pirate city, known for extravagance, women and liquor. The city which went by the sobriquet "wickedest city on earth", lies in shambles deep below the waters of Jamaica's Kingston Harbor after a devastating tsunami struck it on June 7, 1692

From a long lost US base beneath the Arctic ice cap, to a sunken Soviet submarine, the Cold War's toxic legacy is both fascinating and terrifying.