Most coins are worth their face value, but depending on their quality and rarity, they could be worth a lot more to an avid coin collector. Read Next: These 11 Rare Coins Sold for Over $1 Million ...

There's an old saying about not taking any wooden nickels -- but what if it was actually a dime, and what if that was worth millions of dollars? Of course, the proverbial wooden nickel isn't worth ...

A rare coin could fetch more than 250 times its face value to someone lucky enough to find one. In 2008 a minting error meant for the first time in centuries coins ...