st helen's place, the gherkin, architecture
england, great britain, tower bridge
phone booth, england, london
london, grenadier guards, sightseeing
st pauls cathedral, london, bridge
household cavalry soldier, mounted, royal
passengers, station, subway
the underground, london, the city
glass facade, london, tower
castle, london, sightseeing
underground, london, england
tower bridge, bridge, london
london, bus, red
business, uk, london