Old San Juan was once completely walled and what were once fortresses where armed soldiers kept a lookout for enemies arriving by sea, are now publicly accessible, and really fun to visit. The city is very European-esque with winding blue cobblestone streets and outdoor cafes.
Definitely a must see when you travel to PR. Here are some pictures from Old San Juan.
|Castillo San Cristobal|
|View from Castillo San Cristobal|
|San Juan Cathedral - the oldest cathedral in the Western Hemisphere|
|Cementario Maria Magdalena de Pazzis and El Morro in the background.|
|A sidewalk cafe menu.|