The world's largest single depository of gold bars is not held at the famous Fort Knox, but in a Goliath vault 80 feet (24 meters) below the streets of Manhattan. The golden horde of roughly 530,000 gold bars is maintained by the Federal Reserve Bank of New York on behalf of account holders including the U.S. government, foreign governments and central banks worldwide [source: FRBNY].
The Federal Reserve Bank of New York isn't your regular bank and armored truckloads of gold bars aren't your regular deposit. To move this valuable and heavy currency — each gold bar weighs 27.4 pounds (12.4 kilograms) — the bank employs teams of gold stackers who work in shifts to avoid fatigue. Each stacker also wears magnesium-tipped boots ($500 a pair) to protect toes from dropped booty [source: Klisz].
There's also no sleeping on this job. At the end of the workday, the single entrance to the vault is sealed off by a 9-foot (3-meter)-tall, 90-ton (82 metric-ton) steel cylinder that locks into place with four steel rods and cannot be opened until the morning [source: FRBNY].