Wildest roller-coaster rides in the United States
THUNDERHEAD AT DOLLYWOOD, Pigeon Forge, Tenn. This wood sit-down coaster hits up to 55 mph; it also passes through the loading station once before it comes to a stop. "So many steel coasters were stamped out at a factory," says Robert Ulrich, 54, of Marietta. "Wooden coasters -- a carpenter laid out each individual piece." BusinessWire
