A childhood rhyme goes a little something like this: “Find a penny, pick it up, all day long you’ll have good luck!” But what if you found a penny, picked it up, and it was worth millions of dollars?

Here's a look at four lesser-known coins that are worth thousands of dollars.

That’s a lot of coin. A Lincoln wheat penny minted in 1955 sold this month for $2,050 on eBay because it contains a rare feature known as a “double die error ...

Often in coin collecting what makes an item valuable is not that it’s perfect, it’s that something went wrong in the minting process, making the resulting coin rare, and hence highly collectible. That ...