Ключевые слова: abstract, airport, architecture, background, blue, building, business, center, city, construction, design, elevator, entrance, escalator, futuristic, glass, hall, horizontal, indoor, inside, interior, lift, light, mall, modern, motion, move, moving, nobody, office, people, perspective, shopping, speed, stair, staircase, stairs, station, steel, steps, subway, technology, transport, transportation, underground, up, urban, view, walkway, window,