Ключевые слова: aged, ages, ancient, architecture, atop, attraction, benelux, blue, brick, building, castle, culture, defense, europe, european, forest, fort, fortress, heritage, hill, historic, historical, history, knight, landmark, landscape, large, luxembourg, luxemburg, medieval, middle, military, monument, nature, old, power, royal, sight, sky, stone, tourism, tourist, tourists, tower, tradition, travel, tree, vianden, view, wall,