Remains of Castle Ringelstein near <a href="https://en.wikipedia.org/wiki/B%C3%BCren_(Westfalen)" class="extiw" title="en:Büren (Westfalen)">Büren</a>, <a href="https://de.wikipedia.org/wiki/Paderborn_(district)" class="extiw" title="de:Paderborn (district)">District of Paderborn</a>, <a href="https://en.wikipedia.org/wiki/Germany" class="extiw" title="en:Germany">Germany</a>.
<a href="//commons.wikimedia.org/wiki/User:Linda.floren" title="User:Linda.floren">Linda.floren</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>