Ключевые слова: ancient, architecture, bridge, buildings, cais da ribeira, cathedral, church, city, cityscape, colorful, dawn, dom luis, dom luis bridge, douro, downtown, dusk, embankment, europe, historic, historical, houses, illuminated, iron bridge, landmark, night, old town, oporto, portugal, portuguese, postage, ribeira, river, riverside, sky, skyline, sunrise, sunset, tourism, tower, town, travel, urban, view, water, windows,