While most current coins have been in circulation for decades, there have been a number of unique denominations produced in the U.S. over the years. These in particular are the most unique coin values ...

While not common, there is the occasional $100 coin produced, made from precious materials such as silver or gold. These are five of the most valuable gold coins of all time.

The last Lincoln penny was recently struck at the U.S. Mint in Philadelphia. Its removal from circulation marks just one of many changes that American currency has undergone since 1792, when the ...