TOP 10 US MEGASTRUCTURES
7
KINGDA KA : NEW JERSEY
THE IMPRESSIVE ROLLERCOASTER , Kingda Ka , situated at Six Flags Great Adventure is the tallest steel rollercoaster in the world at 456ft , reaching top speeds of 128mph in 3.5 seconds through the use of a hydraulic launch mechanism .
Built by Intamin , the rollercoaster opened in 2005 and has become one of the most popular rollercoasters in the region , incorporating four trains to cater for the increased number of thrill seekers . Once they reach the top height of 456ft , “ riders descend 418ft back down to Earth in a 270 degree spiral .”
29