Ключевые слова: architecture, building, center, church, city, cityscape, clerigos, culture, day, destination, dos clerigos, douro, downtown, europe, european, exterior, facade, famous, historic, historical, igreja dos clerigos, landmark, old, old town, oporto, picturesque, place, port, porto, portugal, portuguese, river, site, torre dos clerigos, tourism, tower, town, traditional, tram, transport, travel, unesco, urban, vertical, view, world heritage site, world locations,