Ключевые слова: alp, alpine, alps, altitude, asphalt, background, beautiful, beauty, blue, cloud, curve, day, europe, field, forest, grass, green, group, high, hill, landmark, landscape, mountain, mountain pass, mountains, natural, nature, o quy ho, outdoor, outdoors, panorama, pass, peak, range, road, rock, scenery, scenic, serpentine, sky, stone, summer, sunny, switzerland, top, tourism, travel, valley, vietnam, view,