Spotting rare coins is a lucrative hobby for some, but it takes patience and impeccable eyesight. There are millions of dollars floating around in this market, many of which may be undiscovered.

A YouTube video from Coin AZ looked at eight rare U.S. coins you should not spend. Here's a look at those coins, including some of their sale prices.

While most pennies are worth only one cent, some rare variations can fetch a large sum at auction. With the penny on its way out, you may want to consider checking your coin jar for rare cent ...

Add Yahoo as a preferred source to see more of our stories on Google. tab1962 / iStock via Getty Images Most of the time, a penny is worth just one cent, but in the case of the most valuable pennies, ...

Mark Avery began collecting coins when he was about 10 years old. As a reward for yard work, Avery’s father would bring back rolls of dimes from the bank. Then, he would go through each roll to look ...

THE REST OF YOUR FORECAST COMING UP. EVER WONDER WHY THE TREASURE COAST IS CALLED THE TREASURE COAST? A BIG DISCOVERY OFF FLORIDA’S TREASURE COAST. DIVERS SAY THEY HAVE RECOVERED MORE THAN A THOUSAND ...