The majority of WWI submarines no longer exist, as many were sunk or sold for scrap. This isn't an unusual practice for the world's navies, but some boats remain and can be visited in museums.

On Dec. 17, 1917, the U.S. submarine USS F-1 was lost at sea during a training accident off the coast of California, killing 19 crew members on board.

A modern expedition follows the path of Hubert Wilkins, who set out for the North Pole in 1931 in a decrepit WW1 submarine.

Researchers surveying WWI-era submarine honor 19 sailors lost in wreck ahead of Memorial Day. The USS F-1 submarine went down off the coast of San Diego in December 1917, after a collision with ...

On Dec. 17, 1917, the U.S. submarine USS F-1 was lost at sea during a training accident off the coast of California, killing 19 crew members on board. Now, just days before Memorial Day ...

Both submarines were used by the Imperial German Navy, which controlled the waters off the Belgian coast during WWI. One of the submarines is a type "U-5" U-boat measuring around 187 feet in ...

WWI submarine graveyard discovered by ... archaeologists have discovered the remains of 41 German and 3 UK submarines sunk during World War I. Der Spiegel reports that the watery graveyard is ...

WWI-era submarine built in Massachusetts in 1918 found frozen in time on ocean floor by New Jersey dive team Updated: Dec. 10, 2020, 11:10 a.m. | Published: Dec. 10, 2020, 11:09 a.m.

Revealing a WWI drama: How modern technology is shedding new light on the horrors of submarine warfare. Exclusive: Archaeologists explore a German U-boat for the first time since it sunk 103 years ago ...

WWI U-boats were commonly staffed by a crew of 23 and, ... The submarine was a UB-II type of U-boat, a formidable weapon of war in their heyday. Equipped with torpedoes, ...