Ключевые слова: architecture, beautiful, blur, business, city, communication, commute, commuter, commuters, commuting, crowd, design, down, elevator, escalator, inside, interior, leaving, life, line, london, metro, modern, motion, movement, moving, new, passenger, people, person, petersburg, public, rail, railroad, railway, russia, speed, stairs, station, subway, tourist, train, transport, transportation, travel, tube, tunnel, underground, urban,