12. Bank of England Gold Vault, Great Britain
Beneath the Bank of England’s headquarters in London is Great Britain’s largest gold vault, which stores over 5,152 tons of gold bricks that are neatly arranged like wrapped chocolate bars on shelves and palettes. To gain access, you have to unlock a bombproof door using a high-tech voice recognition system then use several three-foot-long keys to open locks leading to it. While the size of the vault hasn’t been made public, it is rumoured to have more floor space than the average 47 story building. The total worth of the gold vault’s stock is set at $315 billion.