Sky News has been granted rare and exclusive access to the Bank of England's gold vault in London. It's the second largest gold reserves in the world, with around 400,000 bars now worth close to £600 billion. The vast majority is held on behalf of the UK Government and central banks from across the globe. That includes Venezuela's reserves, which has been tied up in a long-running legal battle. Sky's economics and data editor Ed Conway reports. Read more: https://news.sky.com/story/sky-news-