There's a marketplace for coin enthusiasts to buy and sell rare coins, where you could make some decent money if you find one ...

Collectors hunting for valuable coins don't have to reach back a century or more to find them -- they can pop back a few ...

Most pennies today have little value, but those from the early American colonies can sell for thousands of dollars. In 2010, ...

You might be carrying a hidden fortune in your pocket without even realizing it. Some coins that appear to be ordinary spare ...

The hedge-fund billionaire also paid a record $43.2 million for a copy of the U.S. Constitution four years ago.

You might think the end of penny production would make the coins rare and valuable, but not so fast, warned John Haas, owner ...