That crumpled dollar bill sitting in your wallet right now might actually be worth hundreds, even thousands of dollars. You ...

You've probably never given a second thought to the dollar bills sitting in your wallet right now. Most people don't. They're just money, right? Something to grab for coffee or parking meters, and ...

Take a dollar bill out of your wallet. How much is it worth? Say "a dollar," and chances are, you're absolutely right. But it's also possible that the humble Washington in your hands is worth much ...

Something that's always on the mind of sports card collectors: How rare is my card? While this question is important when determining long-term card values, it’s a much more nuanced discussion than ...

Pull any bill out of your wallet. See the dark green numbers on the top-left and top-right corners? Those are serial numbers, and some are more rare than others. If you happen to have paper money with ...