Caption:

Mind the gap

Keywords:

architecture, arrival, britain, british, commute, commuting, corridor, curve, deck, empty, engineering, england, entrance, geometrical, hole, iconic, journey, line, london, london tube, london underground, mass transit, metro, modern, motion, moving, pavement, platform, rail, railway, route, signage, speed, station, subway, tourism, track, train, tram, transit, transport, transportation, travel, tube, tunnel, underground, underpass, urban, velocity, walkway