Staircase hall of the National Gallery, London
<a href="//www.flickr.com/people/18305489@N00" class="extiw" title="flickruser:18305489@N00">Rudolf Schuba</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/18305489@N00/938558826">London - The National Gallery</a>