Arecibo - Puerto Rico
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/28415633@N00">Jirka Matousek</a> from Brussels Taipei Hong Kong Singapore
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/jirka_matousek/9126089207/">Arecibo - Puerto Rico</a>