Did you know that some U.S. coins are worth far more than their face value? From quirky minting errors to limited editions, ...

Dimes worth a fortune? You betcha! These are the 10-cent Mercury specimens that can sell for $156,000. Check out how to know if you have one.

If you have a lot of loose change stored in your house for a rainy day, one penny you might have could be worth more than you ...