South view of District Heating Plant Spittelau, Vienna / Austria / European Union. Exterior design by <a href="https://en.wikipedia.org/wiki/Friedensreich_Hundertwasser" class="extiw" title="en:Friedensreich Hundertwasser">Friedensreich Hundertwasser</a>. Morning picture at low sun angle.
<a href="//commons.wikimedia.org/wiki/User:Joadl" title="User:Joadl">Joadl</a>
CC BY-SA 3.0 at
<span class="int-own-work" lang="en">Own work</span>