Kingda Ka

Kingda Ka is a hydraulically-launched steel roller coaster located at Six Flags Great Adventure in Jackson, New Jersey, United States. Manufactured by Intamin and designed by Werner Stengel, Kingda Ka opened as the tallest and fastest roller coaster in the world on May 21, 2005, surpassing Top Thrill Dragster. It is the second strata coaster ever built, exceeding 400 feet (120 m) in height, and the last to remain in operation after Top Thrill Dragster closed in 2022. Both share similar designs, although Kingda Ka's layout adds an airtime hill on the return portion of the track. The ride features a hydraulic launch mechanism which accelerates the train to 128 mph (206 km/h) in 3.5 seconds. Its top hat tower element stands at 456 feet (139 m), cementing Kingda Ka as the tallest roller coaster in the world, although its speed record was broken in 2010 by Formula Rossa at Ferrari World in Abu Dhabi, United Arab Emirates.