1917(Carlo Marquardt CMP-50)
- Type: Passenger
- Displacement: 54,282 tons
- Dimensions: 950 x 100 x 35 ft.
- Machinery: Steam turbines, quadruple screws = 23 knots
- Passengers: 4,909 (752 1st class, 535 2nd class, 850 3rd class)
- Builder: Blohm & Voss Shipbuilders, Hamburg, Germany, 1914
- Service: Built as Vaterland for Hamburg-America Line. Largest liner in the world, 1914-21. Hamburg-New York service. Interned at New York at the start of the First World War, August 1914. Seized by American authorities, 1917; became troopship U.S.S. Leviathan. Carrying 10,000 soldiers at a time, she carried approximately 10% of all American troops sent to Europe. Laid up, 1919-21. Restored as a passenger ship, 1922-23; sailed as Leviathan for United States Lines. New York-Southampton service. Laid up, 1932-34. Briefly resumed sailing; laid up from 1934 onward. Scrapped in Scotland, 1938.