Space Mountain

Space Mountain is an indoor, space-themed roller coaster in Tomorrowland at Disneyland in Anaheim, California. Opened on May 27, 1977, it was the second roller coaster built at Disneyland, and was the second of the five versions of Space Mountain built by The Walt Disney Company. Its exterior façade is one of Disneyland's four "mountain" structures that serve as park landmarks.

Walt Disney originally conceived the idea of a space-themed roller coaster for Disneyland following the success of the Matterhorn Bobsleds, which opened in 1959. However, a number of factors including lack of available space, Walt Disney's death, and the Disney company's focus on building what would become Walt Disney World led to the project's postponement in the late 1960s.