Map of the venues of the 1919/1920 Paris Peace Conference (in german)
<a href="//commons.wikimedia.org/wiki/User:Lencer" title="User:Lencer">Lencer</a>
CC BY-SA 3.0
own work, used <a href="//commons.wikimedia.org/wiki/File:Meyers_b12_s0719c.jpg" title="File:Meyers b12 s0719c.jpg">this map</a>