Waterloo Bridge
Waterloo Bridge is a road and foot traffic bridge crossing the River Thames in London, between Blackfriars Bridge and Hungerford Bridge and Golden Jubilee Bridges. Its name commemorates the victory of the British, Dutch and Prussians at the Battle of Waterloo in 1815. Thanks to its location at a strategic bend in the river, the bridge offers good views of Westminster, the South Bank and the London Eye to the west, and of the City of London and Canary Wharf to the east.

Waterloo Bridge is a road and foot traffic bridge crossing the River Thames in London, between Blackfriars Bridge and Hungerford Bridge and Golden Jubilee Bridges. Its name commemorates the victory of the British, Dutch and Prussians at the Battle of Waterloo in 1815. Thanks to its location at a strategic bend in the river, the bridge offers good views of Westminster, the South Bank and the London Eye to the west, and of the City of London and Canary Wharf to the east.
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