Everyone handles money almost every day.  Or they used to anyway.  But can you identify what image is on the back of each piece of common U.S. Currency – that is, the $1, $5, $10, $20, $50 and $100 bills?   Most people could probably identify the famous personage (not all of them dead Presidents) on the front of the bills.  Only a rarely observant person will be able to name what is depicted on the back of each bill.  See how you do.  And then try to win a free beer at your local pub.