Ключевые слова: aerial, aerial landscape, ancient, architecture, blue, building, cathedral, church, city, cityscape, clerigos, colorful, downtown, dusk, europe, european, facade, famous, historic, historical, home, house, landmark, landscape, old, old town, oporto, orange tiles, outdoor, porto, porto portugal, portugal, portuguese, red tiles, romantic, roof, sky, skyline, street, sunset, tiled roof, tourism, town, traditional, travel, twilight, unesco, urban, view, viewpoint,