The German submarine U-977, a Type VIIC U-boat, became the center of one of World War II’s most intriguing post-war mysteries ...

Germany's U-505 submarine was the 1st warship captured by the US Navy in over a century and top secret during World War II. See photos of the inside.

Early on June 29, 1942, the 8,032-ton British steam tanker HMS Empire Mica cruised east through calm waters toward Key West, Florida, where it planned to join a convoy bound for the United Kingdom.

The U.S. Navy sunk many German U-boat submarines in World War II. But then they captured one, right before the D-Day invasion.

The wreck of a WWI German U-boat sunk by the U.S. Navy in 1922 has been discovered off the East Coast of the United States, about 40 miles off Virginia and at a depth of about 400 feet.

The treasures were onboard U-boat 534 when it was sunk by ... a pistol and enigma machines are among items from WWII Nazi U-boat sunk by RAF bomber in ... The interior of one of the submarine's ...

A recent submarine wreckage found off the coast of Argentina has piqued the interests of historians - but led to wild claims it allegedly carried Adolf Hitler from Germany to a secret Nazi ranch ...

On May 4, 1945 one of the most advanced submarines in the world crept up to a British Royal Navy cruiser. U-2511 was one of Germany’s new Type XXI-class “wonder” submarines, and she was ...

A recent submarine wreckage found off the coast of Argentina has piqued the interests of historians - but led to wild claims it allegedly carried Adolf Hitler from Germany to a secret Nazi ranch ...

The wreck of the German U-Boat U-111 was intentionally sunk by the U.S. Navy in 1923 after it was captured at the end of ... An open hatch on the conning tower of U-111 reveals an interior ladder.