After more than 80 years hidden beneath the waves off Rio de Janeiro, the location of a Brazilian troop transport ship ...

Feb. 3 is the 82nd anniversary of the sinking of the USAT Dorchester in the north Atlantic Ocean by a German U-boat.

Delving into the ocean's depths to discover the secrets of sunken ships is an adventure like no other. Sunken ships snorkeling safaris offer the rare chance to experience underwater history up close.