Ключевые слова: ancient, architecture, background, beautiful, blue, district, europe, foothills, forest, grass, green, greenery, guarda, heritage, hiking, hill, hills, historic, house, landmark, landscape, landscapes, medieval, mountain, mountains, natural, nature, outdoor, panorama, portugal, portuguese, rock, scenery, scenic, season, serra da estrela, sky, stone, summer, tourism, tourist, traditional, tranquil, travel, tree, vacation, valley, view, village, way,