In this 6-part documentary series, Professor Alice Roberts takes viewers behind the scenes at St Bartholomew's in London to reveal how 900 years of history have built one of Britain's greatest hospitals. The world-famous 'Barts' is the oldest hospital in the UK still on its original site, and one of the oldest hospitals in the world. Founded in 1123, it's almost as old as the Tower of London and older than the City of London. People have been treated on this ancient site for almost a thousand years - miracle cures were reported in the early days of the hospital in the twelfth century, and now it's a state-of-the-art centre of excellence for heart operations and cancer care, serving the very poorest communities in Tower Hamlets, the richest in the City of London, and people from all over the UK who come to it for its extraordinary medical expertise.