Sun reflection on the roof of National Library of Latvia called "Gaismas pils" (Light castle).
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/101181388@N07">YuJeen</a> from Riga, Latvia
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/101181388@N07/14628683686/">National Library of Latvia</a>