Werner Stengel including Son of Beast, Millennium Force, Superman The Ride, Top Thrill Dragster, Kingda Ka, Dollywood's Mystery Mine, El Toro, Maverick and many others. In the 2004 Amusement Today Golden Ticket Awards list of the world's top 50 steel roller coasters, 72% have had direct involvement with Stengel Engineering. He received an honorary doctorate from Gothenburg University in 2005, for his "inexhaustible creativity in linking physics and design to the experience of the body in roller coasters and other rides." One of the most famous and highly regarded Stengel/Schwarzkopf rides is Lisebergbanan at Liseberg, a park situated in Gothenburg city, Sweden.
Kingda Ka into the existing structure which was also built by Intamin. Kingda Ka closed at the start of the 2014 season in order to construct Zumanjaro: Drop of Doom on to Kingda Ka. Kingda Ka reopened on weekends on Memorial Day Weekend and fully reopened when Zumanjaro: Drop of Doom was completed on July 4, 2014. Kingda Ka's layout and experience is nearly identical to that of Top Thrill Dragster. After the train has been locked and checked, it moves slowly out of the station to the launch area. It passes through a switch track, which allows four trains (on two