Fuji-Q Highland in Fujiyoshida, Yamanashi, Japan, Eejanaika is a ride worth going to Japan for. Of course, you should stay for a few days and see other things. But, make sure you get a ride on this beast to have something to tell the grandchildren.
That Only Scratches The Surface
There are many more rides on the list. Make sure you take note of them all. You just might want to make a Bucket List so you can scream your head off and buy the picture as proof.