Knightsbridge
Knightsbridge is a residential and retail district in central London, south of Hyde Park. It is identified in the London Plan as one of two international retail centres in London, alongside the West End. Knightsbridge is also the name of the roadway which runs near the south side of Hyde Park from Hyde Park Corner.

Knightsbridge is a residential and retail district in central London, south of Hyde Park. It is identified in the London Plan as one of two international retail centres in London, alongside the West End. Knightsbridge is also the name of the roadway which runs near the south side of Hyde Park from Hyde Park Corner.
Check the official site before travelling; hours and prices can change.
More bridges

Tower Bridge
The bridge people mean when they say London Bridge. Walk the high-level walkway for the glass floor.

Millennium Bridge
Foot-only suspension bridge from St Paul's to Tate Modern — the only crossing aligned on St Paul's dome.

Hammersmith Bridge
Currently pedestrian-only, Victorian wrought-iron beauty — best photographed at golden hour.
Source: wiki-list