Fortification walls of Córdoba, Spain.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/97006177@N00">Michal Osmenda</a>
CC BY 2.0
<a href="//commons.wikimedia.org/wiki/Flickr" class="mw-redirect" title="Flickr">Flickr</a>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/97006177@N00/6933174608">Fortification walls of Córdoba, Andalusia</a>