muncipality operations centre Dornbirn, Vorarlberg, Austria. Heating plant. In the background on the hill is the settlement of Klotzacker. In the foreground the Dornbirner Ache. The large pipe in the bank fortifications of the Dornbirner Ache is the end of the Zanzenberg tunnel (Steinebach).
<a href="//commons.wikimedia.org/wiki/User:Asurnipal" title="User:Asurnipal">Asurnipal</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>