Ключевые слова: airport, architecture, background, building, business, center, city, climb, design, electric, elevator, escalator, exit, floor, glass, goal, hope, indoor, inside, interior, lift, light, lights, line, mall, metal, metro, modern, motion, move, office, perspective, public, shopping, stair, staircase, stairs, stairway, station, steel, step, subway, transport, transportation, travel, tunnel, underground, up, urban, way,