Whether you're an avid collector or you happen to have some decades-old baseball cards collecting dust in your attic, you could be making a pretty penny off the fact that you've saved them this long.
We took a look around eBay to find out which cards are going for some of the highest rates. The prices we discovered ranged anywhere from a few hundred dollars to the hundreds of thousands -- even reaching $1,000,000.
Yes, you read that correctly. There's one card in particular that's going for a million bucks. Check out the slideshow below to find out what it is.