Splintering Speedsters These wooden wonders are some of the most popular coasters in the country. With rattling bolts and flexing planks, you'll be relieved just knowing you survived the ride. Featured Coasters: Thunderhead at Dollywood in Pigeon Forge, TN; El Toro at Six Flags Great Adventure in Jackson, NJ; The Beast at Kings Island in Mason, OH; The Voyage at Holiday World in Santa Claus, IN. See these coasters in action.