17. Ultra Twister of Japan
This ride has the most unusual design when it comes to a roller coaster. It is located at Nagashima Spa Land in Japan. Not only design but the ride itself is very unusual. Putting four people in a car, it takes the riders up a vertical incline, thrusts them down a track, and spins 360-degrees through a tunnel, stops, lowers the car down an elevator, and shoots the car backward while twisting 360-degrees. Even dreaming of it might scare you.