Sculpture "Grosse Begehbare" (= large accessible [Sculpture]) by Volker Gerlach, locatet at Ihme river in Hanover, Germany.
<a href="//commons.wikimedia.org/wiki/User:ChristianSchd" title="User:ChristianSchd">ChristianSchd</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>