"Haunted Mansion Holiday is a seasonal overlay of Disneyland's Haunted Mansion attraction.[1] (A similar overlay called Haunted Mansion Holiday Nightmare can be found at Tokyo Disneyland.) It blends the settings and characters of the original Haunted Mansion with those of Tim Burton's The Nightmare Before Christmas. The Haunted Mansion typically closes for two and half weeks in August so it can be converted into the Haunted Mansion Holiday. The overlaid attraction is then open to guests from late-September through early-January, before being closed again during January so the overlay can be removed." - Wikipedia and Disneyland website