Arecibo Observatory
This 600-ton platform, largest of its kind in the world, is a 20-acre-wide dish set into a gigantic natural depression. More>>
Old San Juan
This restored old section of the capital is a remarkable place to visit. It has a number of small museums as well as marvelous restored forts. More>>
El Yunque (Caribbean National Forest)
El Yunque is well worth a visit for anyone who has ever dreamed of visiting a rainforest. There is a visitor's center, roadside waterfalls, hiking trails, and other facilities. More>>
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