Ключевые слова: alpine, alps, architecture, background, beautiful, beauty, blue, boat, building, church, city, clouds, europe, european, forest, green, high, holiday, lake, landmark, landscape, light, lucerne, luzern, mountain, nature, old, panorama, panoramic, pilatus, reflection, relax, rigi, river, scene, scenic, schweiz, sky, snow, summer, swiss, switzerland, tourism, town, tranquil, travel, vacation, view, water, white,