Spanning 27 acres, Castillo San Cristóbal was built to protect Old San Juan from land attacks. It doesn't receive as many visitors or as much adoration as its sister fortification, El Morro ...

Between the 16th and 20th centuries, a series of defensive structures was built at this strategic point in the Caribbean Sea to protect the city and the Bay of San Juan. They represent a fine display ...

U.S. News Insider Tip: Many visitors flock to Old San Juan for nightlife, but you'll find more locals in La Placita de Santurce, a farmer's market by day that hums with music, dancing, dining ...