Exterior view of the mihrab dome in the Great Mosque of Kairouan, Tunisia.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/21822583@N08">Chuck Moravec</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/21822583@N08/5520927574">Kairouan Grand Mosque 25</a>