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Using cutting edge visual effects to 'drain' the waters around the notorious island of Alcatraz. With the waters drained away the secrets of Alcatraz are revealed, including exactly why the island's infamous prison was so inescapable. With no water in the way San Francisco Bay is revealed to be a fascinating and chaotic place. On the dry bay floor we see the scars left by epic earthquakes. These fault lines give scientists an idea as to when and where the next 'big one' will strike. With the whole area drained it's possible to see what could happen to San Francisco when the next giant quake hits, as well as what will be left of Alcatraz once the dust settles.

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 mythical triangle? With the aid of data from sophisticated sonar surveys, National Geographic explores what the ocean floor looks like below the Bermuda Triangle.

Port Royal, the 'wickedest city on Earth', famous for its Caribbean pirates, liquor, is torn apart on June 7th 1692 by quake and tsunami. Two thirds of buildings are sucked into the ocean, the rest buried where they sink. 2,000 die. Marine archaeologist Jon Henderson goes in search of what happened. Scientific data combines with computer graphics to DRAIN the waters to investigate final moments and resurrect past secrets.

Scientists and film makers take us to the bottom of the Great Lakes and show us what the bottoms are like and go back in history when they formed.

This series tells the stories of legendary battlefields by the objects of war left behind, and the emotional reunions as they connect the past with the present by locating surviving family members connected to battlefield artifacts.

I Am War is a new TV special that tells the personal accounts of five men and women who fought with the Canadian Forces during the Afghanistan War and how these traumatic experiences have changed their lives. These compelling testimonials are personal journeys into war based on actual events and stories from firsthand witnesses.

Before D-Day, there was Dieppe. After 70 years, the true story can finally be told.

Off the northern coast of Ireland, a massive shipwreck has laid unseen for decades. Now that divers are finally able to reach her, they can uncover the secret of how the HMS Audacious met her bitter end in World War I.

Mike Barnette, Jimmy Gadomski and the rest of the team of investigators are back on the trail of a famous cold case that keeps them up at night: the disappearance of seven U.S. Navy planes in 1945.

Explore a world never seen before, a world hidden under miles of water, the landscape of the Atlantic sea bed. From the seabed in the Bermuda Triangle, the debris field of ships sunk by German U-boats in World War 2 to the wreckage of the Titantic, all will be exposed and examined.