From printing errors to rare serial numbers, discover why these 12 $100 bills have become prized collectibles and could be ...

The first $2 bills were issued by the U.S. federal government in 1862, featuring a portrait of the first Secretary of the Treasury Alexander Hamilton. The Federal Reserve paused production of $2 bills ...

When you're trying to get ahead financially, every dollar counts. And for a few thrifty savers, every dollar can count twice (or more) if you're lucky enough to come across one of these rare, valuable ...