High-end auctions are famous for having rare collectibles, but sometimes the story behind the items up for bid can be as interesting as the item itself. This was the case recently in Paris, where a collection of ultra-rare gold coins was sold for nearly $3.5 million. That part isn't unusual, but the coin's origin story defies belief. They were found hidden in the walls of their former owner's home. Paris-based auction house, Beaussant Lefèvre & Associates, conducted the sale, according to CNN. The more details they provided about the coin's history, the more unbelievable the story became. The coin's original ... (full story)