relief of the alps with indications of prehistoric pile dwellings around the Alps placed in front of the town hall of Litzelstetten (<a href="https://de.wikipedia.org/wiki/Konstanz" class="extiw" title="de:Konstanz">de:Konstanz</a>)
<a href="//commons.wikimedia.org/w/index.php?title=User:Ackermann_H.&amp;action=edit&amp;redlink=1" class="new" title="User:Ackermann H. (page does not exist)">Ackermann H.</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>