Part of BBC4's 'London' season, this was commissioned for the 2012 Olympics celebration. Dan Cruickshank explores the mysteries and secrets of the bridges that have made London what it is. He uncovers stories of bronze-age relics emerging from the Vauxhall shore, of why London Bridge 'was 'falling down', of midnight corpses splashing beneath Waterloo Bridge, and above all, of the sublime ambition of London's bridge builders themselves. Shot in the chill of a golden January, by the brilliant Seamas McCracken, it shows London in a very different light from the one visitors - or Londoners - usually see.

The Bridges that Built London

With Dan Cruickshank

60' for BBC4 and BBC2, 2012