london, big ben, historical building
the underground, london, the city
england, great britain, tower bridge
passengers, station, subway
st helen's place, the gherkin, architecture
tower bridge, bridge, london
castle, london, sightseeing
underground, london, england
glass facade, london, tower
tower hill street tube, tube station, london tube
london eye, london, clouds
st pauls cathedral, london, bridge
london eye, night time, thames
london, england, river
palace of westminster, big ben, london
london, st pauls, cathedral
