City of Siegen (Westphalia, Germany): commemorative plate, mounted on the remains of a large iron fence of the 17th century. This fragment of the once 700 metres long historic fence is located in the park of Siegen’s medieval Upper Castle, <i>Oberes Schloss</i>.
<a href="//commons.wikimedia.org/wiki/User:Frank_Behnsen" title="User:Frank Behnsen">Frank Behnsen</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>