The first indoor skydiving facility using a vertical wind tunnel was built in 1982 in Las Vegas, Nevada, in the United States.
The tunnel was developed by American inventor and entrepreneur, John K. Baxter, and was initially used for military training and research purposes. However, it soon became popular with the public as a recreational activity and a way for people to experience the thrill of skydiving in a safe and controlled environment.
Since then, indoor skydiving has become a popular sport and entertainment activity around the world, with many facilities using vertical wind tunnels similar to the one developed by Baxter.
These wind tunnels typically consist of a vertical column of air that is generated by powerful fans at the base of the tunnel. The air is directed upward through a large circular chamber, creating a cushion of air that can support the weight of a human body.
In summary, the first vertical wind tunnel for indoor skydiving was built in Las Vegas in 1982.