The dragon's den beneath Disneyland Paris' Sleeping Beauty Castle is a really fun walk-through attraction, and presentation is quite atmospheric and immersive. The animatronic dragon is intimidating and really cool at the same time. I really wish they had this at Disneyland California, but alas, that infrastructure was not built in at 1955. Oh well, Disneyland Paris will have to do. Here are some more pictures of the cavern!