Stollenmundloch der Grube Klangstein in <a href="//commons.wikimedia.org/w/index.php?title=Sechshelden&amp;action=edit&amp;redlink=1" class="new" title="Sechshelden (page does not exist)">Sechshelden</a>
<a href="//commons.wikimedia.org/wiki/User:Thariama" title="User:Thariama">Thariama</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>