Ключевые слова: aerial view, architecture, attraction, baroque, bell tower, building, campanile, cathedral, church, city, cityscape, classic, clerigos, clerigos tower, craftsmanship, cultural, destination, douro river, elevation, europe, european, famous, heritage, heritage site, historic, historic site, historical building, iconic, landmark, masonry, monument, old town, ornate, panoramic, perspective, picturesque, porto, portugal, religious, sculpted, sightseeing, skyline, stone, tall, tourism, traditional, travel, unesco, urban, viewpoint,