USS Nautilus (SSN-571) Nuclear Landmark. Visitors may tour the forward two compartments, with guidance from an automated system. Despite similar alterations to exhibit the engineering spaces, tours aft of the control room are not permitted due to safety and security concerns. USS Nautilus (SSN-571) USS "Nautilus" (SSN-571) was the world's first operational nuclear-powered submarine and the first submarine to complete a submerged transit of the North Pole on 3 August 1958. Sharing names with Captain Nemo's fictional submarine in Jules Verne's classic 1870 science fiction novel "Twenty Thousand Leagues Under the Sea", and named after another that served with distinction in World War
20,000 Leagues Under the Sea: Submarine Voyage to those who pass by. The lagoon remained as a scenic viewpoint (and was renamed "Ariel's Grotto", complete with a King Triton spouting statue) until 2004, when the water was drained and the sets and infrastructure were demolished. Pooh's Playful Spot was built where the attraction formerly stood and operated between 2005 and 2010 before making way for the Seven Dwarfs Mine Train as part of the Fantasyland Expansion. 20,000 Leagues Under the Sea: Submarine Voyage 20,000 Leagues Under the Sea: Submarine Voyage was an attraction at the Magic Kingdom theme park at Walt Disney World from 1971 through 1994.