Ключевые слова: area, background, black, cable, city, design, destination, detailed, electric, element, europe, heritage, historic, hour, icon, illustration, isolated, line, mass, metropolitan, modern, old, outline, passenger, public, railroad, railway, road, side, speed, street, streetcar, style, subway, symbol, system, thin, tourism, traffic, train, tram, tramway, transport, transportation, travel, trip, urban, vehicle, web,