Albergue Olímpico
Puerto Rico's Olympic training center isn't just for world-class athletes; it's a massive multiuse sports complex that's open to the public and virtually unknown to anyone other than locals. Just off the main highway on the drive from San Juan to Ponce, the Albergue has 45 different training centers—from gyms and pools to shooting ranges—where visitors can watch athletes train. There's also an Olympic Museum, food and beverage concessions, two water parks, a climbing wall for young kids, and even an 18-hole mini-golf course. Although the center is technically open year-round, the outdoor recreational facilities and public spaces tend to be open only from April to September; at other times of the year, visitors will need to make an appointment if they wish to see the museum, for example.