This is the Arecibo Observatory, a radio telescope located close to the city of Arecibo in Puerto Rico. http://en.wikipedia.org/wiki/Arecibo_Observatory
Arecibo Observatory (Radio Telescope) in Arecibo, Puerto Rico
This is the Arecibo Observatory, a radio telescope located close to the city of Arecibo in Puerto Rico.
http://en.wikipedia.org/wiki/Arecibo_Observatory
Arecibo Observatory – Puerto Rico