Most of the time, a penny is worth just one cent, but in the case of the most valuable pennies, they can be worth thousands or even millions of dollars. If you're sorting through your pocket change, ...

Usually when errors happen during the production process, they lead to a decrease in value of the manufactured item. But when they happen at the U.S. Mint, they could lead to an item ballooning in ...

We're not going to lie — it's fun to read about those million-dollar ancient coins, but what we really want to do is find a treasure in our pocket change. Consider this list of the most valuable coins ...