Almost no one outside the sponsor (the World Gold Council) has ever seen the gold in the world's largest vault — until now.
Gold is increasingly harder to find, forcing thousands of miners to drill deeper, at higher costs and greater danger.
With the price of gold soaring to record levels, the precious metal has become that much more dear. Where and how should gold buyers store their bullion and coins?
Like commodities in general, metals help investors diversify as their performance bears little resemblance to that of stocks.
Most investors these days play gold through mutual funds and exchange-traded funds but the investment strategy of these vehicles varies widely, as have their performance relative to the metal's decade-long rally.
Gold Bullion International's CEO explains the advantages. "When you own a real asset, there's no counterparty risk between you and the real asset," he says