The great Rayonnant Gothic cathedral of Cologne - <a href="//commons.wikimedia.org/wiki/K%C3%B6lner_Dom" title="Kölner Dom">Kölner Dom</a>. <a href="//commons.wikimedia.org/wiki/Cologne" title="Cologne">Cologne</a> (Köln), <a href="//commons.wikimedia.org/wiki/Germany" class="mw-redirect" title="Germany">Germany</a>. This is a crop of a CC-BY photo <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/132646954@N02/">f. ermert</a>, to which I reached via Wikipedia. A wonderful photo, so I took the liberty to focus on the Gothic cathedral who towers above the city.
<p>Source: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/132646954@N02/">F. Ermert</a> <br></p>
Derivative: <a rel="nofollow" class="external text" href="https://www.flickr.com/people/zachievenor/">Zachi Evenor</a>
CC BY 2.0
<a href="//commons.wikimedia.org/wiki/Flickr" class="mw-redirect" title="Flickr">Flickr</a>: <a rel="nofollow" class="external free" href="https://www.flickr.com/photos/zachievenor/28546528990/">https://www.flickr.com/photos/zachievenor/28546528990/</a>