Potsdamer Platz, Berlin
<a href="//commons.wikimedia.org/w/index.php?title=User:Friedrich_Petersdorff&amp;action=edit&amp;redlink=1" class="new" title="User:Friedrich Petersdorff (page does not exist)">Friedrich Petersdorff</a>
CC BY 2.0 de
<span class="int-own-work" lang="en">Own work</span>