7. Action Comics #1 Found Hidden in Wall
Where: Minnesota, USA
Year Found: 2010s Estimated Value: $176,00*
When individuals renovate their homes, especially if they were built decades ago, it’s astonishing what they find. During renovations at his Minnesota home, David Gonzales came across Action Comics #1, the first issue of the DC comics that featured Superman.

Action Comics #1: Hidden in a Wall @Pinterest/USAToday
The comic books published by the rival Marvel company, Action Comics, were some of its most profitable, and collectors of comic books today find it difficult to locate the original issues. Gonzales’ copy was in better shape than many others, and he eventually sold it for around $200,000. Unbelievably, the comic book and a variety of other materials were used as insulation for the walls by the previous owners, who built the house in 1938.
