The Royal Tour
San Juan was established by Spain in 1521, making it the oldest European-built city in the US, and one of the oldest in North America. Old San Juan is still mainly intact, with fortifications like this all around its mighty walls.
The highlight of the fortifications is the fortress of San Felipe del Morro, now a national parks site along with a second fortress on the other side of the city. If you see one, see this one.
The Cathedral of San Juan Batista was built in 1540, and houses the tomb of Juan Ponce de Leon inside.
If you enjoy old cemeteries, the Santa Maria Magdalena de Pazzi cemetery, just outside the walls of the del Morro fortress, is stunning .This is the view from above, but it is worth entering and walking around.
This cool building houses the Museo de las Americas. It is - in my opinion - the best museum in Old San Juan.
The Fuente Raices sits along the waterfront, just outside the walls of Old San Juan.
Be sure to click on the link below for a detailed itinerary of how to spend one, two, or three days exploring Old San Juan.