Some $20 bills with a small star symbol, known as Star Notes, can be rare collectibles worth far more than face value.

JOPLIN, Mo. (KSNF) — That $1, $5, or $10 bill in your wallet might be worth way more than its face value. Knowing what your paper money might be worth is all in the serial number. Serial numbers are ...

You probably handle dollar bills every day without giving them a second thought. Just simple paper money, right? Here's the thing, though. Some of those singles sitting in your wallet might actually ...