heritage, unesco, historic, world, castle, la, san juan, national, site, dwelling, palace, house, terrestrial planet, united nations educational scientific and cultural organization, mansion, earth, Louisiana, city, district, housing, state, celestial body, louisiana, globe, american state, united nations agency, urban area, building, planet, historical, Earth
San Juan National Historic Site, Castillo San Cristobal, San Cristobal Castle, Old San Juan, UNESCO World Heritage Site, Viejo San Juan, Patrimonio de la Humanidad de la UNESCO