Most state quarters are still worth 25¢. But a short list of error varieties and special issues can be worth real money—and ...

There's something to be said for collecting old coins. Some people do it for the fun of it or to have a cool story to tell. Others do it in hopes of making a profit. Read Next: 4 Kennedy Half ...

Coin enthusiasts will recall the much-ballyhooed rollout of a series of state quarters produced by the U.S. Mint during a 10-year period early this century, back when consumers were still inclined to ...