Geodesic dome of the Reunion Tower, Dallas<br>reunionsquared
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/72516959@N00">Bill Ballantyne</a> from Baltimore, USA
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/72516959@N00/3554648">Flickr</a>