Ключевые слова: ancient, architecture, baptist, baptista, building, castle, century, city, culture, da, district, do, douro, europe, european, famous, fort, fortress, foz, heritage, historic, historical, history, joao, john, landmark, landscape, medieval, municipality, old, oporto, outdoor, parish, porto, portugal, portuguese, ruin, saint, sao, scene, sky, st, stone, tourism, tourist, tower, travel, view, wall, xvii,