Ключевые слова: architecture, art, azulejos, baroque, blue, boats, bridge, building, catholic, ceramic, christian, church, city, cityscape, culture, day, douro, downtown, europe, european, exterior, facade, gaia, heritage, historic, historical, iberia, iberian, igreja, ildefonso, landmark, monument, old, oporto, port, porto, portugal, portuguese, rabelo, religion, religious, river, saint, santo, tourism, town, traditional, travel, urban, view,