Joanna starts her adventure in Venice, where she discovers how the Silk Road helped the merchants of Venice and the city state itself grow rich and powerful. She visits a fabric workshop using silk thread to make some of the finest velvet in the world, costing 5000 euros per metre and supplying The White House, the Kremlin and many world-renowned fashion houses. Catch up now on the ITV Hub: https://bit.ly/2CNMR9U

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