Production errors and unique background stories make some historic coins now worth way more than their face values. And holding on to them, including those in the list below, could mean increased ...

Some of the rarest and most valuable coins in U.S. history owe their worth to minting errors that slipped through unnoticed. Coins like the 1943 Copper Penny, struck in copper instead of wartime steel ...

Ever thought about digging through your pocket change? Turns out there might be real treasure hiding in plain sight. Certain ...

Minting coins isn't exactly an exact science. Even though most coins are perfect and uniform, small mistakes can result in error coins that are super valuable and ...

These eight quarters may look like just pocket change. But in the right hands, they could be exchanged for a fortune.

Add Yahoo as a preferred source to see more of our stories on Google. Jiri Hera via Shutterstock We're not going to lie — it's fun to read about those million-dollar ancient coins, but what we really ...