<a href="//commons.wikimedia.org/wiki/Stolberg_(Harz)" title="Stolberg (Harz)">Stolberg (Harz)</a>
<a href="//commons.wikimedia.org/wiki/User:Sicherlich" title="User:Sicherlich">Ralf Lotys</a> (Sicherlich)
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>