"Civitas Dei" (the City of God), <a href="https://en.wikipedia.org/wiki/Byzantine_architecture" class="extiw" title="w:Byzantine architecture">Neo Byzantine</a> style <a href="https://en.wikipedia.org/wiki/Mosaic" class="extiw" title="w:Mosaic">mosaic</a> of the ceiling at the entrance of the <a href="https://en.wikipedia.org/wiki/Aachen_Cathedral" class="extiw" title="w:Aachen Cathedral">Cathedral of Aachen</a>, <a href="https://en.wikipedia.org/wiki/North_Rhine-Westphalia" class="extiw" title="w:North Rhine-Westphalia">North Rhine-Westphalia</a>, <a href="https://en.wikipedia.org/wiki/Germany" class="extiw" title="w:Germany">Germany</a>.
<a href="//commons.wikimedia.org/wiki/User:Jebulon" title="User:Jebulon">Jebulon</a>
2013-12-21
<span class="int-own-work" lang="en">Own work</span>