Ключевые слова: abstract, airport, architecture, background, blue, building, business, city, climb, design, down, elevator, empty, entrance, escalator, fast, floor, glass, inside, interior, lift, light, mall, metal, metro, modern, motion, move, movement, office, people, perspective, stair, staircase, stairway, station, steel, step, steps, subway, technology, transport, transportation, travel, up, urban, walk, walkway, way, white,