Ключевые слова: ancient, architecture, area, building, buildings, city, cityscape, couple, culture, day, eu, europe, european, european union, european union flag, exploring, exterior, famous, flags, heritage, historic, historical, history, houses, landmark, luxembourg, luxembourg city, luxembourg flag, mast, medieval, outdoor, people, rear view, scene, selective focus, sightseeing, spring, street, summer, tourism, tourist, tourists, town, traditional, travel, travel destination, unesco world heritage site, urban, view, walking,