Benoît Tremsal, Zwei gekippte Flächen, 2007, – Niedersachsen, Osnabrück, Westerberg-Park
<a href="//commons.wikimedia.org/wiki/User:Kamahele" title="User:Kamahele">Kamahele</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>