Ok, so here is the start of a post that is going to turn out to be massive. For now though, its just a list of the bridges across the Thames - I'll be adding photos to each name as I take/find/post them.
This is initially just the bridges, so I've not included ferrys, tunnels, cables cars or the Thames Barrier. It's correct at Spring 2012 and does not include proposed new bridges.
So starting from the estury and working towards the source:
Queen Elizabeth II Bridge 1991
Not a Bridge, but the Thames Barrier. A crossing of sorts I suppose, if its shut!
Cutty Sark and the entrance to the Thames Foot tunnel.
Tower Bridge 1894
London Bridge 1973
Cannon Street Railway Bridge 1982
Southwark Bridge 1921
Millennium Bridge 2000
Blackfriars Railway Bridge 1886
Blackfriars Bridge 1869
Waterloo Bridge 1945
Hungerford Footbridges (Golden Jubilee Bridges 2002)
Charing Cross (Hungerford) Bridge 1864
Westminster Bridge 1862
Lambeth Bridge 1932
Vauxhall Bridge 1906
Grosvenor Bridge (Victoria Railway Bridge) 1859
Chelsea Bridge 1937
Albert Bridge 1873
Battersea Bridge 1890
Battersea Railway Bridge 1863
Wandsworth Bridge 1938
Fulham Railway Bridge and Footbridge 1889
Putney Bridge 1886
Hammersmith Bridge 1887
Barnes Railway Bridge and Footbridge 1849