things to do in Old San Juan Archive San José Church Gothic churches are rare in the New World, but Puerto Rico GuideToCaribbean / San Cristobal Fort Fort San Cristóbal stands guard at where once was the eastern GuideToCaribbean / Fort San Felipe del Morro El Morro, officially known as Fuerte San Felipe del Morro, sits GuideToCaribbean / Walking Tour of Old San Juan Narrow cobblestone streets, colorful colonial buildings, centuries-old fortresses overlooking the Atlantic GuideToCaribbean /