Arecibo Lookouts & Observation Decks
• A WorldWeb.com Travel Guide to Lookouts & Observation Decks in Arecibo, Puerto Rico.
At 20 acres and 600 tons, this is the world's largest radar-radio telescope. The National Astronomy and Ionosphere Center of Cornell University explores outer space, and lends its facility to such movies as Contact. Walk the platform, tour the visitor center, and explore exhibits on planetary systems, meteors, and weather phenomena.








