Somewhere deep in the bowels of the world’s Western central banks lie vaults holding gargantuan piles of physical gold bars… or at least that’s what they all claim. The gold bars are part of their respective foreign currency reserves, which include all the usual fiat currencies like the dollar, the pound, the yen and the euro.

Collectively, the governments/central banks of the United States, United Kingdom, Japan, Switzerland, Eurozone and the International Monetary Fund (IMF) are believed to hold an impressive 23,349 tonnes of gold in their respective reserves, representing more than $1.3 trillion at today’s gold price. Beyond the suggested tonnage, however, very little is actually known about the gold that makes up this massive stockpile.