Ключевые слова: basilica, church, church tower, city, clouds, countryside, double, europe, flux, german, germany, height, history, koblenz, landmark, memorial, mosel, panorama, promenade, rhine, rhinelandpalatinate, river, roof, rooftop, ship, shipping, sky, skyline, symbol, tops, tour tourism, tourist attraction, touristic, towers, town, travel, vacation, water,