Ключевые слова: aerial, ancient, antique, architecture, boat, bridge, building, car, cathedral, church, city, cityscape, culture, douro, europe, european, fog, heritage, historic, historical, history, landscape, luis, old, panoramic, park, people, porto, portugal, portuguese, ribeira, river, road, roof, seagull, ship, site, skyline, street, tourism, tourist, town, tradition, traffic, train, travel, tree, unesco, urban, wine,