Ключевые слова: airport, architecture, background, building, business, center, city, climb, design, down, electric, elevator, escalator, floor, glass, indoors, inside, interior, lift, light, mall, metal, metro, modern, motion, move, movement, office, path, pedestrian, people, perspective, shopping, stair, staircase, stairway, station, steel, steps, subway, technology, train, transport, transportation, travel, underground, up, urban, walk,