Maker: Jerry Siegel and Joe Schuster 
Original Price: 10c*
Worth Today: $3.2 Million*

The Action Comic number 1 is the very first superhero comic book. It originally featured several superheroes, most notably Superman, and is credited as the beginning of the superhero genre. It is also the most valuable comic of all time, so definitely worth scrummaging in the old comic box collecting dust to search for one of these guys.

Published in 1938, the cover features Superman lifting a green car while people flee the scene. There were 200,000 copies printed of the first issue which sold out at a remarkable speed. It didn’t take them long to realize that Superman was the reason the comic book did so well, soon after they were selling a million copies a month. 

Comic books themselves have become even more popular in recent years thanks to the work of Disney and Sony. Even though an issue of this particular comic cost just 10 cents at the time, a pristine version can be worth up to $3.2 million. That’s not small change.