Millions of Londoners cross these bridges every week. Most of them hardly give it a second thought. But bridges are much more than merely a means of transport - ways of getting from one place to another. They are also ways of linking the present to the past. London's Bridges are not just functional objects - they're also symbols, metaphors, which transform, connect and inspire. Some of them have vanished or been replaced - ghost-crossings of the past - but each of them is a clue to the city's hidden history - in some ways they are that history: a history that has lasted nearly four thousand years. Content licensed from Digital Rights Group (DRG). Any queries, please contact us at: realstories@littledotstudios.com Produced by Tern TV