Treasure hunter Terry Shannon (Spectrum News/Randy Rauch) The treasure hunter has written several books and teaches people how to metal detect (for free) and find their own riches at no cost.

This isn’t fantasy—it’s the everyday reality at Shupps Grove Antique Market in Reinholds, Pennsylvania.

That’s precisely what happens at the Mad Hatter Antique Mall in Adamstown, Pennsylvania – a sprawling wonderland where yesterday’s treasures await today’s discovery. This isn’t some quaint little ...