Ключевые слова: architecture, boat, bridge, building, city, cityscape, cruise, cruise boat, danube, departure, docked, europe, european, famous, ferry, harbor, historic, holiday, journey, landmark, landscape, leisure, low water, luxury, marina, nature, outdoor, recreation, rhine, river, river bank, river boat, river cruise, riverboat, riverside, scenic, ship, steamboat, summer, tourism, tourist, tower, town, townscape, traditional, transport, transportation, travel, trip, tugboat, urban, vacation, view, viking cruise line, vintage, water, waterfront,