"Jet d'eau" in Genéve, Switzerland. The fountain is approx. 140 m high, and when running there is a total of 7 tonnes of water in the air constantly. The speed of the water is 200 km/h at the bottom.
Sindre Skrede
CC BY 2.5
Own work. Canon EOS350D, 55mm, F/14, 1/400s.