Expedition Everest at Disney’s Animal Kingdom (just under 200 feet) is the tallest attraction at Walt Disney World Resort, followed by The Twilight Zone™ Tower of Terror at Disney’s Hollywood Studios (199 feet), Magic Kingdom’s Cinderella Castle (189 feet), Spaceship Earth at Epcot (183 feet), Space Mountain at Magic Kingdom (180 feet) and The Tree of Life at Disney’s Animal Kingdom (145 feet).
Disney’s Animal Kingdom encompasses 403 acres, the company’s biggest theme park. The park’s centerpiece is The Tree of Life, 14 stories high and 50 feet wide at its trunk.
http://corporate.disney.go.com/media...acts_08_06.pdf