Canadian coins are more than just spare change—they can be hidden treasures. From rare minting errors to limited-edition releases, certain Canadian coins have become highly sought-after by collectors ...

Add Yahoo as a preferred source to see more of our stories on Google. A staff member with the U.K.'s Royal Mint holds up a commemorative five-pound coin bearing the official coinage portrait of King ...

Behind each of these seven coins is a unique history and an astronomical price that shattered auction records.