The RMS Queen Mary is a retired British ocean liner that sailed primarily on the North Atlantic Ocean from 1936 to 1967 for the Cunard Line After several years of decreased profits for Cunard Line, Queen Mary was officially retired from service in 1967. She left Southampton for the last time on 31 October 1967 and sailed to the port of Long Beach, California, United States, where she remains permanently moored. Much of the machinery, including one of the two engine rooms, three of the four propellers, and all of the boilers, were removed. The ship serves as a tourist attraction featuring restaurants, a museum and a hotel. The ship is listed on the National Register of Historic Places.