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.

World War II veterans who were there when the U-505 on display at the Museum of Science and Industry was captured in 1944 visited the vessel on the 70th anniversary of its capture.

Divers have discovered a World War II-era German submarine nearly 70 years after it sank under withering U.S. attack in waters off Nantucket.

Off the North Carolina shore, recreational divers have explored three German U-boats submerged since World War II ended. Now, archaeologists are getting involved to preserve them.

What you call them depends on where they're made. A U-boat is nothing more than the Anglicized term for a German submarine and isn't strikingly different from U.S. subs.