1: The 1794 Flowing Hair Dollar, America's first silver dollar, is worth millions.

2: The 1933 Double Eagle, banned for private ownership, fetches over $7 million.

3: The 1804 Silver Dollar, with only 15 known to exist, is highly coveted.

4: The 1913 Liberty Head Nickel, with only five in existence, is a collector's dream.

5: The 1943 Copper Penny, minted during WWII, is valued at over $100,000.

6: The 1787 Brasher Doubloon, worth millions, is America’s first gold coin.

7: The 2000 Sacagawea Dollar, missing its gold plating, is worth over $10,000.

8: The 1838 O Half Dollar, with 12 known to exist, is highly sought after.

9: The 1974 D Aluminum Penny, mistakenly minted, is worth up to $250,000.