Bon Voyage SS United States! The historic SS United States ocean liner has begun its move out of Philadelphia today, February 19, on a new voyage as it prepares to become the world's largest artificial reef off the Florida coast in the Gulf of Mexico.
SS United States is a retired American ocean liner that was built during 1950 and 1951 for United States Lines. She is the largest ocean liner to be entirely constructed in the United States and the fastest ocean liner to cross the Atlantic Ocean in either direction.