Space Mountain

Space Mountain is an outer space-themed, indoor roller coaster in Tomorrowland located at Walt Disney World's Magic Kingdom theme park in Orlando, Florida. The dark ride, which opened on January 15, 1975, is the original version of the iconic attraction that has since been replicated at other Disney theme park locations worldwide, with the exception of Shanghai Disneyland Resort. Space Mountain is also the oldest operating roller coaster in the state of Florida. RCA helped fund construction and sponsored the ride from 1975 to 1993. FedEx assumed sponsorship from 1994 to 2004.

Walt Disney originally conceived the idea of a space-themed roller coaster for Disneyland following the success of Matterhorn Bobsleds in 1959. However, technological limitations and planning for Walt Disney World led to the project's postponement in the late 1960s.

Source: Wikipedia