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Ah, money. You work hard for it, you never seem to have enough of it, it makes the world go 'round, but mo' of it means mo' problems.

Beyond all of that, how much do you really understand about that money in your pocket? You'd be surprised by what you don't know --- and we've got just a few (85!) examples.

Take a look at these fascinating facts you've probably never heard about money.

85. It makes no cents

In 2016, it cost the U.S. Mint 1.5 cents to make one penny. Canadians had a similar problem with pennies costing more than they were worth, which is why Canada stopped making pennies in 2012.

Coins of Canada. Maple leaves depicted in Canadian one cent coin.
Vladimir Wrangel/Shutterstock

84. Virtual cheese

The Federal Reserve has $1.49 trillion in paper currency circulating in the United States at any given time for people to swap physical bills. However, that doesn’t mean it’s all the money in the country. The vast majority of money is recorded digitally, and transactions from a checking account are handled with debit cards or checks.

finance, money, bank and people concept - close up of woman inserting card to atm machine
Syda Productions/Shutterstock

83. Empty vaults

Despite what you see in the movies, retail banks don’t actually keep millions of dollars sitting in a vault. The vast majority of banks in the country are required to keep only enough cash to cover 3% of the total transactions on reserve. That means your local bank probably only has a few thousand dollars in the vault, which is enough for day-to-day transactions.

The doorway of a bank vault.
Peter Kim/Shutterstock

82. Lucky 13

The number 13 shows up a lot on the dollar, in honor of the first 13 original American colonies. Images of 13 olive branches, stars, stripes, and arrows are all included.

thirteen arrows
Ezume Images/Shutterstock

81. Not worth it

According to the FBI, bank robbers get away with an average of only $4,410.

Cropped photo of FBI agent using laptop in office

80. Scrooge McDuck

The government isn’t the only place that prints their own money. For years, Disney printed its own “Disney Dollars”, which could be used only at the company's theme parks. Disney stopped making them in 2014, but the fake money is still accepted at Disney parks and resorts as currency. However, anyone who still has their old Disney Dollars would actually get a better deal on eBay. Collectors sell these gift certificates for a few dollars each, all the way up to thousands of dollars.

Disney Dollars

79. Incredible discovery

A few of the original metal printing blocks from the 1600s used for early U.S. colonial money were discovered in Cambridge, Massachusetts, while doing construction around Harvard University. They are now on display at the Museum of American Revolution in Philadelphia.

US colonial money
Public Domain

78. Dutch bubble

In Holland during the 1600s, people went crazy over tulips. People began to trade bulbs for the rarest types of tulips, which drove them to pay insane prices to acquire them. Tulip bulbs would sell for six times an average annual salary. By 1636,they were even traded on the stock exchange. By 1637, tulips began to lose their value, and the prices crashed.

Landscape with tulips, traditional dutch windmills and houses near the canal in Zaanse Schans, Netherlands, Europe
Olena Z/Shutterstock

77. Slap on the wrist

A man named Frank Bourassa from Quebec, Canada, printed $250 million in fake American dollar bills that were incredibly realy, based on the authenticity requirements on the U.S. government websites.

The key to his success was obtaining the authentic paper from a Swiss supplier. In 2012, he was caught.

Bourassa gave his printing equipment and $200 million of fake currency to the Canadian government. He also paid a $1,500 fine, and spent only six weeks in jail.

american 20 dollar bill
Public Domain

76. Zero hour nine AM

For years, the biggest source of counterfeit American money was North Korea. People there created “super dollars” — fakes that were incredibly accurate.

However, the U.S. Secret Service cracked down, and cases of counterfeiting significantly dwindled in the early 2000s.

North Korean leadership Kim Jong-un
North Korea

75. Ye olde facial recognition

The faces on dollar bills are very important, because it’s part of anti-counterfeit efforts. People tend to recognize faces better than anything else, so they will notice when a portrait looks a little strange. This is why they made Benjamin Franklin’s face even bigger on the new $100 bills.

Macro shot of a new 100 dollar bill.

74. Barclaycash

A man named John Shepherd-Barron invented the idea of the ATM machine while he was relaxing in the bathtub. He gave the idea to Barclays Bank, who installed the first machine in London in 1967. As there were no debt cards in 1967, bank customers would withdraw funds by inserting a slightly radioactive (detectable by the machine to determine authenticity) punch card protected with a six digit pin.

Barclays ATM

73. Greenbacks

In 1860, just before the Civil War, the U.S. Treasury distributed paper currency called “demand notes” and “United States Notes” which were nicknamed “greenbacks”. It was the first time the government distributed paper money, a practice that has continued to this day.

Public Domain

72. Confederate Dollars

During the Civil War, the Confederacy came up with its own form of money called "The Confederate States of America Dollar." Today, these notes are bought and sold as collector’s items. If you want to try to get your hands on a Confederate $100 bill on eBay, it will cost you $29,500.

The Confederate States of America Dollar
Public Domain

71. Gold certificates

From 1865 to 1933, the U.S. Treasury circulated gold certificates, a form of currency that could be redeemed for gold coins. Starting in 1878, similar silver certificates were issued. Those lasted until the 1960s.

U.S. Treasury gold certificate
Public Domain
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