Hundertwasser District Heating Plant Tower In Vien - Friedensreich Regentag Dunkelbunt Hundertwasser (December 15, 1928 – February 19, 2000) Was An Austrian Painter And Architect. Born Friedrich Stowasser In Vienna, He Became One Of The Best-known Contemporary Austrian Artists, Although Controversial, By The End Of The 20th Century. The Heating Plant In Spittelau Vienna Is Known To Be Very Efficient And Enviromentally Friendly. Photo