Tallest roller coaster: Kingda Ka

TravelTheme Park VacationsAmusement and Theme ParksSix Flags Inc.
Kingda Ka, a record-setter at Six Flags Great Adventure in Jackson, N.J., peaks at 456 feet. ASTM International, a private standards-setting organization based in Pennsylvania, has published standards that spell out the maximum thrust, acceleration and drops for theme park rides. But the... Six Flags Great Adventure