Ключевые слова: airport, architecture, background, building, business, center, city, convention, design, elevator, entrance, escalator, floor, indoor, interior, lift, luxury, mall, market, metal, metro, modern, move, moving, perspective, public, shop, staircase, stairs, stairway, station, steel, step, subway, technology, transport, transportation, travel, underground, up, urban, way, wide,