You never know when you might come across a valuable error coin, so it helps to know what to look for. Here's a look at five of the most valuable error coins.

Here's what one expert looks for when scouting for rare and valuable coins. Keep your eyes peeled -- you might just have some ...

WASHINGTON (AP) — President Donald Trump says he has directed the Treasury Department to stop minting new pennies, citing the rising cost of producing the one-cent coin. “For far too long the United ...