1: Rare bicentennial quarter sold for almost $14 million.

2: Another 7 rare quarters valued at over $50 million.

3: Collectors scramble for valuable bicentennial coins.

4: The hunt for rare quarters at an all-time high.

5: What makes these coins so valuable?

6: Tips for identifying rare bicentennial quarters.

7: History of the bicentennial quarter.

8: Rare coin market continues to soar.

9: Invest in rare coins for potential high returns.