A theme park gift under $10? Theme Park Insider: 2016 Year in Review
This was actually the first roller coaster in the world to have a vertical loop. Most of the track is hidden in the trees, so you can't really make out what's going on unless you're on the ride.
The OSTR's make the ride a little bumpy, and the wait is usually around 30 minutes.
Walt Disney World
Tokyo Disney Resort