So, I was completely fascinated when I came across several sites that have information on old amusement parks. I immediately went searching for information on defunct dark rides. Here is the first of a series of posts on abandoned amusement parks with dark rides and creepy looking decay.
Here is the "House of Terror" at the Takakanonuma Greenland Park in Hobara Town, Japan. From the blog Arificalowl.net it appears that it was only open two short times (less than five years since it was build in the early 70s.)

There are many resources for abandoned amusement parks, but one of the best I have found (and where these photos came from) is Dark Roasted Blend. Do yourself a favor and check out the link (these pictures come from his blog) to see some very cool pictures of abandoned parks in Asia.....I don't know about you, but there is definitely some disturbing about an abandoned amusement park. 
Reminds me of Spirited Away (one of my favorite movies) It is funny now, when I remember back to that movie I did think it was odd that there was an abandoned amusement part in the middle of nowhere. Guess it is not that odd at all :)