But even $5 bills from the 20th century can fetch high prices. Here’s a look at a few different five-dollar bills that can sell for hundreds of dollars or more.

Check you $5 bills for serial numbers with all the same digits. They could be worth thousands.

It’s one of those rare times that — just maybe — it’s possible to turn $5 into $300,000. A rare bill that was proudly displayed in one family’s house in Pasadena, Calif. for decades is ...

Other bills that have funky serial numbers or mistakes on them are also worth some serious cash. A $20 bill made in 2009 sold for $5,581 and a rare $2 bill sold for nearly $30,000, according to ...

In some cases, it’s easy to tell that a bill is rare. For example, $500, $1,000 and $10,000 bills — which did exist until the 1940s — are all exceedingly difficult to find in circulation.

If you've ever found a dollar bill or a coin that feels unique, you may have discovered a rare currency that could be worth thousands. If you're an avid coin collector or you just stumbled upon a ...