Kew Bridge
Kew Bridge is a wide-span bridge over the Tideway linking the London Boroughs of Richmond upon Thames and Hounslow. The present bridge, which was opened in 1903 as King Edward VII Bridge by King Edward VII and Queen Alexandra, was designed by John Wolfe-Barry and Cuthbert Arthur Brereton. Historic England listed it at Grade II in 1983.

Kew Bridge is a wide-span bridge over the Tideway linking the London Boroughs of Richmond upon Thames and Hounslow. The present bridge, which was opened in 1903 as King Edward VII Bridge by King Edward VII and Queen Alexandra, was designed by John Wolfe-Barry and Cuthbert Arthur Brereton. Historic England listed it at Grade II in 1983.
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