Space Mountain is an enclosed roller coaster attraction in Discoveryland at Disneyland Paris themed around a journey into outer space. Originally themed around Jules Verne's classic 1865 novel From the Earth to the Moon, the attraction opened on June 1, 1995, three years after the opening of the park, as an intended revival of interest to draw more guests to the financially unstable European resort. Unlike other Space Mountains found around the world, this version has a steampunk-detailed appearance, with a huge dominating Columbiad Cannon and a plate-and-rivet exterior, in keeping with Discoveryland's retro-futuristic theme. It is the only Space Mountain to feature inversions and a section of the ride outside the mountain, that being the station and cannon. The attraction was also the first roller coaster to feature a Synchronized On-Board Audio Track (the first roller coaster to feature nonOn-Board audio was Chaos at Opryland USA Themepark).