Ключевые слова: architecture, background, black, blue, cable, car, city, connection, electric, electrical, electricity, energy, equipment, europe, high, industrial, industry, isolated, light, line, metal, network, old, power, public, rail, railway, retro, road, sky, steel, street, supply, symbol, technology, tourism, traffic, train, tram, tramway, transport, transportation, travel, urban, vehicle, vintage, voltage, white, wire, yellow,