Secrets of the Lost Liners

Climb aboard this Russian-designed symbol of French pride and marvel at the Art Deco luxury that made it the most expensive ocean liner ever built. Investigate the fire that sank her in 1942, which may have been an act of Nazi sabotage.

Mapping the zigzagging path of a floating palace as it ferries U.S. troops to Europe during World War II; witnessing her smooth transition to peacetime cruise ship and mourning her disastrous end after she was sold to a Hong Kong shipping tycoon.

Hollywood stars flocked to this sleek, stylish vessel, making it the envy of other shipping lines; learning why her high-tech navigation equipment failed to alert her to another ship that was on a catastrophic collision course.

The pride and joy of Benito Mussolini's fleet, which was once the fastest liner on the Atlantic; discovering why she was never turned into a troop ship during the war, but remained a target for the Allies, who sank her after Italy surrendered.

This fate of this Nazi era German flagship ended in tragedy. But who was responsible?

How did one of the longest serving liners end up as a wreck in the Canary Islands?