Ключевые слова: alpine, alps, ancient, architecture, attraction, background, balzers, building, burg gutenberg, castle, city, clouds, construction, europe, exterior, fortification, fortress, green, gutenberg, hill, hilltop, historic, historical, house, landmark, landscape, liechtenstein, medieval, middle ages, monument, mountain, museum, nature, old, outdoors, palace, rhine, ring wall, rock, scenery, sightseeing, sky, stone, summer, switzerland, tourism, travel, vaduz, view,