 Flying Fortress  is the twenty-fifth episode of the Sonic Underground television series and the first of three episodes in the Chaos Emerald Crisis mini-series. It first aired on 31 March 1999 in France and on 1 October 1999 in the United States.
The 2003 season saw Kings Dominion become the final of several of the Paramount Parks to open a Drop Zone: Stunt Tower, now Drop Tower: Scream Zone. The 305-foot-high (93 m) Drop Zone at Kings Dominion was the tallest freefall ride in the world at the time it opened.
As of July 2014, the longest drop is at Zumanjaro: Drop of Doom at Six Flags Great Adventure, at 415 feet (126 m). A drop tower type of ride is distinct from an observation tower ride; the latter acts more like a traditional elevator, gently lifting riders up to its maximum height before lowering them gently as well.