If you happen to have one of these rare comic books, you may have a super-sized fortune on your hands. Whether you're collecting comics or you scored a great find at a flea market or garage sale, it ...

The world of comic book collecting has transformed from a childhood hobby into a serious investment market where single issues routinely sell for millions of dollars. What once cost a dime at the ...

Add Yahoo as a preferred source to see more of our stories on Google. Davide Ronfini / EyeEm via Getty Images If you happen to have one of these rare comic books, you may have a super-sized fortune on ...