It's pretty normal to get a fiver back when you get change, but some rare 5-dollar bills are actually worth a lot more than ...

A 10-spot is always worth at least ten dollars, but some rare 10-dollar bills can be worth a fortune (or at least as much as a small house). Learning to spot the most valuable 10-dollar bills ...

In particular, $2 bills are very rare, and are considered a symbol of ... For example, uncut sheets of one-dollar bills always have serial numbers starting with '99.' ...

By the way, did you know your pennies, two-dollar bills, or other rare coins and currency could command high prices at auction, too? When it comes to value, coin condition is critical. Collectors ...