Ключевые слова: amsterdam, architecture, beautiful, bicycle, boat, building, canal, city, cityscape, culture, dancing houses, destination, dutch, empty, empty city, europe, european, famous, heritage, historic, history, holland, house, infection, landmark, landscape, medical, netherlands, no people, old, outdoor, panorama, protection, river, road, square, street, tourism, tourist, town, travel, urban, view,