Kingda Ka at Six Flags Great Adventure in Jackson, NJ
The world’s tallest at a height of 456 feet, and America’s fastest roller coaster, Kingda Ka launches at 128 miles per hour. Riders fall at a 90-degree right angle after reaching the peak. Named after the Bengal tiger that lives next to the ride, Kingda Ka is less than a minute long, but it promises to be one of the scariest of your life! (Photo credit STAN HONDA/AFP/Getty Images)