D-Day: The Lost Evidence

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.

Documentary series examining what it takes to survive in some of the most extreme places on the planet.

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.

Hidden beneath Yellowstone National Park lies a supervolcano with an eruption potential poised for global catastrophe; now, scientists use cutting-edge tech to explore what they believe could be the largest natural disaster that's waiting to occur.