Most people handle dozens of dollar bills without ever noticing a small, blue five-pointed detail that only some carry. This small star at the end of a U.S. bill's serial number shows that the bill is ...

You probably tuck $2 bills into your wallet without thinking much about them, but some of those notes can be quietly valuable ...

I’m not a collector. But Chris Naughton — a building manager in San Antonio — recently showed me a hobby I’m in danger of starting. It’s right up my alley. Naughton caught my attention by telling me ...