With gold trading at nearly $1,830 an ounce, it’s no doubt a good idea to make sure that all your belongings made of the precious yellow metal are safely stored. Some will lock the gold in a safe, others may go with a safety deposit box in the bank. Investors who purchase gold, meanwhile, store it in special vaults. That got us thinking about the largest, most secure vault in the world: the U.S. Bullion Depository, commonly referred to as Fort Knox. In this infographic, you’ll find a collection curious facts about Fort Knox, as well as some of the conspiracy theories circulated about it