Haunted Mansion
Haunted Mansion is one of the iconic Disneyland attractions. On the drawing board from the very early on, it took years to get the attraction built, even though the mansion was there for years. With a long queue through the mansion grounds the ride begins with an elevator ride that leaves initiates wondering if they actually moved or if it was just an illusion. The hallway after the elevator features changing paintings and before you're actually on the ride you've seen a decent show. Once aboard an omnimover the ride winds through several themed rooms that put all county fair haunted houses to shame.
For the Halloween and Christmas holiday seasons (usually mid-September through early January) Haunted Mansion is completely redecorated into Haunted Mansion Holiday, based on Nightmare Before Christmas.