The 302 meter ship becomes the largest artificial reef in the world and a paradise for divers in the USA.
The historic USS United States, once the world's fastest ocean liner, was deliberately sunk in the Gulf of Mexico off the coast of Florida to become the world's largest artificial reef.
The ship, which is longer than the Titanic, was launched in 1951 and set a transatlantic speed record on its maiden voyage in 1952, crossing the Atlantic in 3 days, 10 hours and 40 minutes - beating the Queen Mary's record by more than 10 hours.
The sinking, which began on Wednesday afternoon, took longer than expected, the crews had to fill 128 tanks of fuel and lubricants with water in order for the ship to stabilize evenly and by evening the vessel rested on its side and sank.