Olympic treasure trove unveiled—dive into the history of U.S. Mint Olympic coins as Congress readies approval of legislation ...

It's all about silver content, minting errors, and condition when it comes to the value of Kennedy half dollars.

All dollar coins are worth at least a dollar, which is known as their face value. Some are worth many times that, however. These are six of the rarest silver dollars and their values.

Are your old pennies worth millions? Experts say you shouldn't bank on it. However, some wheat pennies could be worth ...