20,000 Leagues Under the Sea (Disneyland)

20,000 Leagues Under the Sea was a walkthrough exhibit of sets and props from the film of the same name featured at Disneyland's Tomorrowland from 1955 to 1966.

History
During the construction of Disneyland, Tomorrowland was the most under-developed area of the park, with much of the space dedicated to exhibits from corporate sponsors. To fill some extra space that hadn't signed on a sponsor, Disney chose to install an exhibit on the recent film 20,000 Leagues Under the Sea. This would tie into Tomorrowland for the themes of nuclear power Disney added to the story, as well as demonstrate some of the special effects technology that went into "the Mightiest Motion Picture of Them All".

When Tomorrowland was overhauled in 1966, the exhibit closed and was replaced by Adventure Thru Inner Space. Decades later, Les Mystères du Nautilus, a new Nautilus walkthrough attraction, would open at Disneyland Paris.