Great hall of Porto São Bento train station, Porto, Portugal
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/133200397@N03">Sergei Gussev</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/sergeigussev/31702998062/">Flickr</a>