What most people imagine to be Walt Disney World -- the Magic Kingdom -- actually is a small, but emblematic, part of it. Similar to California's Disneyland, the Magic Kingdom is the wellspring of Mickeymania and the most popular individual theme park in the United States, welcoming millions every year. For many of those who have grown up with Cinderella, Snow White, Peter Pan, Dumbo, Davy Crockett, and Pinocchio, it's one of those magical places, "so full of echoes, allusions, and half-memories as to be almost metaphysical," according to renowned travel writer Jan Morris. It's the site of such world-famous attractions as Space Mountain, Pirates of the Caribbean, Splash Mountain, and "it's a small world."