The duplicated one-dollar bills are currently going for up to $150,000 ... as they do right side up. Think lots of 0's, 6's/9 ...

Artist Dan Tague has found hidden messages encrypted in U.S. dollar bills. He would fold a dollar bill as many as 100 times to come up with phrases made up by the letters on the money. Tague's ...

2-dollar bills account for less than 0.001% of all currency in circulation. One of the reasons 2-dollar bills are so uncommon is that fewer of them were printed. No one wanted them. In fact ...