Ключевые слова: alpine, alps, background, beautiful, beauty, blue, clouds, cogwheel, destination, environment, europe, european, gear, grass, high, hill, journey, lake, landscape, lucerne, mount, mountain, mt, nature, outdoor, peak, pilatus, pilatusbahn, rail, railway, red, road, rock, scene, sky, steepest, summer, swiss, switzerland, tourism, tourist, touristic, track, train, transport, transportation, travel, view, white,