Night shot of the <a href="https://en.wikipedia.org/wiki/Post_Tower" class="extiw" title="en:Post Tower">Post Tower</a> in <a href="https://en.wikipedia.org/wiki/Bonn" class="extiw" title="en:Bonn">Bonn</a>, currently lit in blue. The media facade can also be lit in red and is able to show simple monochrome animations.
<a href="//commons.wikimedia.org/wiki/User:H005" title="User:H005">H005</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>