Castillo San Felipe del Morro in San Juan, Puerto Rico

Castillo San Felipe del Morro in San Juan, Puerto Rico - Credit: Wikimedia Commons

Castillo San Felipe del Morro, also known as El Morro, is a citadel built between 16th and 18th centuries in the historic district of Old San Juan located in San Juan, Puerto Rico.www.nps.gov National Park Service - San Juan National Historic Site - The Gibraltar of the Caribbean - Accessed on 2014-11-29 Read more on Wikipedia

type: historic site
date from: 1589

Source: en.wikipedia.org