2. Kingda Ka, 206 km/h, Six flags great adventure, New Jersey, United States.
Kingda Ka is a steel accelerator roller coaster located at Six Flags Great Adventure in Jackson, New Jersey. It is the world’s tallest roller coaster, the world’s second fastest roller coaster, and was the second strata coaster ever built. The train is launched by a hydraulic launch mechanism to 206 km/h in 3.5 seconds.