Watch 10 Things You Don't Know About Season 3 Episode 8 Online

Whether it's in your pocket, in your bank account, or stuffed under your mattress, what most people don't know about the history of their cash can fill Fort Knox. Henry travels the strange and sordid trail of currency in America... from how bills were first printed, to why have coins have ridges on them. There are bizarre stories of wishing wells, the national debt, even the U.S. Government literally setting one state's dollars ablaze. By the end of this trip, your money will never look the same way again.