Every day, thousands upon thousands of coins continue to exchange hands ... Find out more about the most valuable pennies and how to identify them.

9 of the most valuable coins in the ... million Canadian Gold Maple Leaf coin is a novelty coin, if there ever were one, and it tips the scales at a whopping 100 kilograms or about 220 pounds.

The collections tend to have more sentimental than economic value since it is usually relatively easy to find the most common old coins. But in certain cases, due to their rarity or age ...