Gold - part two

As the paper-money financial world is revealed to be fictional, people have been rushing to invest, once again, in "real" gold.

Nick Rankin unlocks the history and enduring fascination of the rare yellow metal that has been integral to economic exchange systems for millennia.

From King Midas to gold-rushes, from bling to Wall Street, this three-part series takes in the global realities and rich symbolism of the coveted mineral that shines on us all.

Programme two:

In part two, Nick descends into the deepest goldmine in the world – TauTona in South Africa.

5,000 miners extract gold up to four kilometres under the surface but for every tonne of ore they take out, there is only eight grammes of gold to be found.

Nick talks to miners about their lives underground and learns about the real price of gold.