Ключевые слова: animal, background, bird, blue, bright, city, closeup, concept, connected, design, fly, flying, group, height, high, highway, industry, korea, lifetyle, long, monorail, nopeople, object, passenger, pigeon, public, rail, red, route, seoul, single, sky, south korea, speed, sunlight, surrounded, surrounding, system, technology, track, train, transfer, transport, travel, unit, vehicle, vibrant, village, white, wings,