Key embedded in the pavement in front of the house at Birkengasse 1 in <a href="https://en.wikipedia.org/wiki/Bischofswerda" class="extiw" title="w:Bischofswerda">Bischofswerda</a>, <a href="https://en.wikipedia.org/wiki/Upper_Lusatia" class="extiw" title="en:Upper Lusatia">Upper Lusatia</a>, <a href="https://en.wikipedia.org/wiki/Saxony" class="extiw" title="w:Saxony">Saxony</a>, <a href="https://en.wikipedia.org/wiki/Germany" class="extiw" title="w:Germany">Germany</a>
<a href="//commons.wikimedia.org/wiki/User:WikiAnika" title="User:WikiAnika">WikiAnika</a>
CC BY 3.0 de
<span class="int-own-work" lang="en">Own work</span>