American history's most coveted paper bills tell stories of artistic layout, historical significance, and fantastic rarity. Currency collectors compete fiercely at auctions, driving prices into the millions for the most elusive examples. Here are a few.
Hidden in plain sight on dusty shelves, attics, basements, garages, and even your granny's home, you'll find items that'll fetch you big bucks. Curious about what might be valuable? Here are 44 things to look for.