We're INSIDE a Gold Bullion Vault. The Bank of England protects about £197 billion ($315bn) worth of gold, according to the mostly recently published figures. Film by Brady Haran. Featuring Professor Martyn Poliakoff. The vaults are off limits, but the Bank of England Museum will let you lift a real gold bar: bit.ly/TJ4BVk More of our videos about gold: bit.ly/Re3Lkp More chemistry at www.periodicvideos.com/ Follow us on Facebook at www.facebook.com/periodicvideos And on Twitter at twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: www.bradyharan.com/ Brady's other channels include: www.youtube.com/sixtysymbols (Physics and astronomy) www.youtube.com/numberphile (Numbers and maths) www.youtube.com/DeepSkyVideos (Space stuff) www.youtube.com/nottinghamscience (Science and behind the scenes)