Richmond, London
Richmond is a town in south-west London, 8.2 miles (13.2 km) west-southwest of Charing Cross. It stands on the River Thames, and features many parks and open spaces, including Richmond Park, and many protected conservation areas, which include much of Richmond Hill. A specific Act of Parliament protects the scenic view of the River Thames from Richmond.
Richmond is a town in south-west London, 8.2 miles (13.2 km) west-southwest of Charing Cross. It stands on the River Thames, and features many parks and open spaces, including Richmond Park, and many protected conservation areas, which include much of Richmond Hill. A specific Act of Parliament protects the scenic view of the River Thames from Richmond.
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