Amazing DIY back-yard rollercoaster built out of scrap metal, the seat from a junker-car and the lap-belt from a wrecked airplane. Check out the 360 degree corkscrew!
John Ivers wanted to see a roller coaster.
So he built one — a real, working roller coaster 180 feet long, 20 feet high, and complete with a 360-degree corkscrew. It goes over his steeply angled barn roof, wraps around a nearby Chinese elm and comes to a roaring stop in about 11 seconds