This is from my 2019 calender either the February or the August page. This stereographic reprojection was generated from a spherical panorama I shot standing near the entry of the Boomerang roller coaster in the Prater amusement park in Vienna, Austria.
In the late 1990s hang gliding was a popular sport in and around Bad Hindelang. The hang gliders were transported to the start place using a chair lift. The old chair lift has been replaced by a cable car and the sportsmen started to go paragliding instead. So this ramp is seldom used nowadays.