Lambeth Bridge
Lambeth Bridge is a road traffic and footbridge crossing the River Thames in an east–west direction in central London. The river flows north at the crossing point. Downstream, the next bridge is Westminster Bridge; upstream, the next bridge is Vauxhall Bridge.

Lambeth Bridge is a road traffic and footbridge crossing the River Thames in an east–west direction in central London. The river flows north at the crossing point. Downstream, the next bridge is Westminster Bridge; upstream, the next bridge is Vauxhall Bridge.
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