Pictures: Walt Disney World's 40th Anniversary
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Giant banner hangs on Cinderella Castle during Disney World's 40th anniversary celebration
A giant banner hangs on Cinderella Castle on Oct. 1, 2011, in the Magic Kingdom at Walt Disney World Resort in Lake Buena Vista, Florida, prior to a special ceremony to mark Walt Disney World's 40th anniversary. Walt Disney World opened Oct. 1, 1971.