Of course, for every genius who can invent a lock, there's another one who can learn to pick it. There's a Technological Arms Race With Burglars As a result, safes got ever larger and heavier until, by the 1920s, most banks were using huge, built-in vaults, with walls and doors that were several feet thick. Banks quickly decided they needed a secure solution that couldn't be carried off by a determined thief. At that time, banks used safes to protect their goods, and bank robbers took to heaving these out the window, hauling them off, and breaking them open in a secure location. They Were Invented as a Result of the Gold RushĪt least in the U.S., bank vaults as we know them today emerged during the Gold Rush of 1849, when unsuccessful prospectors gave up on finding their gold in the ground and decided to get it the easy way - by robbing a bank. Here are 10 things you probably didn't know about them. (See also: The Best and Worst Places to Stash Cash in Your Home) In fact, these ultra-exclusive enclaves of riches have a lot of secrets. That's because bank vaults and other covert bunkers that hold valuable goods use some pretty amazing technology to keep things secure. For most of us, our exposure to bank vaults probably doesn't extend beyond the clever bank heists we've seen in movies like " Ocean's 11" and " Heat." In reality, of course, those types of crimes are very, very rare.
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