The gray colonial building known as La Princesa was once a prison, but now it houses the main office of the government-run Puerto Rico Tourism Co. Occasional special exhibits of regional art and handicrafts are held there. La Princesa is on Paseo de la Princesa, a 19th-century esplanade lined with benches and plazas with outdoor sculptures. It's a great street for strolling. The building is open Monday-Friday 8 am-4:30 pm. La Princesa is located in the middle of the promenade, Old San Juan, San Juan. Phone 787-721-2400.
