Old assembly building in <a href="https://en.wikipedia.org/wiki/Bonn" class="extiw" title="en:Bonn">Bonn</a>, Seat of the UNFCCC secretariat.
<a href="//commons.wikimedia.org/wiki/User:Dr._Chriss" title="User:Dr. Chriss">Christian Wolf</a> (<a rel="nofollow" class="external text" href="http://www.c-w-design.de">www.c-w-design.de</a>)
CC BY-SA 3.0 de
<span class="int-own-work" lang="en">Own work</span>