I toured the USS Lionfish, a Balao-class submarine that rescued downed pilots in World War II. Take a look inside.

The USS Lionfish docked at Battleship Cove in Fall River, Massachusetts.

Talia Lakritz/Business Insider

• The USS Lionfish was commissioned in 1944 and earned one battle star for service in World War II.
• It sank a Japanese submarine, rescued the crew of a B-29 bomber, and served as a training submarine.
• The Balao-class submarine is now a museum docked at Battleship Cove in Fall River, Massachusetts.

The World War II submarine USS Lionfish was part of America's...