Disney's Hollywood Studios

Disney-MGM Studios (as the park was originally known) grew out of the Great Movie Ride Pavilion, which was proposed as a new addition to Epcot's line-up. When rival Universal announced plans to build Universal Studios Florida, Disney CEO Michael Eisner ordered the company's Imagineers to expand the design into a complete new theme park, and it opened in 1989.

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In its original guise, the park resembed a Mickey Mouse face from the air.

Sunset Boulevard and Tower of Terror

Disney-MGM Studios proved to be an immediate hit, but it originally featured only a handful of attractions. Ambitious expansion plans were put into place, culminating in the addition of Sunset Boulevard, leading to the enormous Twilight Zone Tower of Terror. Some 1,500 tons of steel were used to construct the ride building, along with 145,800 cubic feet of concrete. The roof is lined by 27,000 tiles. On the inside, sections of the lobby were inspired by the Millennium Biltmore Hotel in Los Angeles.

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Rock 'n' Roller Coaster

Rock 'n' Roller Coaster was originally built outside, with the enormous ride building then being constructed around it. The volume of the building is more than 3.7 million cubic feet. The ride opened in 1999.

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Typhoon Lagoon

Typhoon Lagoon was the second water park at Walt Disney World, after the much-smaller (and now abandoned) River County. At its heart sits Mt. Mayday, with the wrecked Miss Tilly boat at its peak.

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