Panorama of the <a href="https://en.wikipedia.org/wiki/Danube" class="extiw" title="w:Danube">Danube</a> in Vienna
<a href="//commons.wikimedia.org/wiki/User:Dmottl" title="User:Dmottl">Dmitry A. Mottl</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>