Former church St. Maria ad Gradus, Cologne, Germany. With the St. Lupus church behind.
<p>Built in 11th century, destroyed 1817.
</p>
Model of the church, located in Cologne Stadtmuseum.
<a href="//commons.wikimedia.org/wiki/User:Beckstet" title="User:Beckstet">Beckstet</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>