1943-D Lincoln copper wheat penny coin

This measly copper penny could set you for life if you happen to find one in the back of your attic. The only known specimen of the 26 coins that were minted in Philadelphia in 1943 sold for a jaw-dropping $1.7 million in 2010!

So, presumably, there are 25 more coins out there to look out for! The chances of you finding one are low, but not non-existent!

1907 rolled-edge eagle $10 coin

Collectors have been known to enter into bidding wars over these elusive coins. Minted in 1907, these gold, rolled-edge $10 coins haven’t fared well through the edges. Very few have made it to the present day, which is why they’re worth so much.

One extremely well-kept example was sold at an auction in 2011. The lucky bidder won that war by offering $2.2 million!