The world's scariest haunted housed, recognized by the Guinness Book of World Records is located in Japan inside Fuji-Q Highland Amusement Park. Only a certain amount of people are let in at a time and it can take you up to 1 hour to find your way out of the maze. It was reported that you need to stand in line to get in. And while waiting, you can see people running out of the house, crying and screaming.
The Japanese love hunted houses and it's true. This haunted house apparently is a hospital and it is believe that they remade the exact building as the real hospital which is believed to be haunted. They made a superb walk through in the hospital with only charges of additional 500 Yen.
I doubt many people makes it all the way through.