A Series of Interesting Facts About Dollar Bills

GeoBeats has put together a series of 10 interesting facts about United States dollar bills, including the fact that most bills in circulation contain some trace amount of cocaine and how much it actually costs to print money.

It costs money to make money. The expense involved in printing dollars depends upon the denomination. Singles run about a nickel a piece and 5s, 10s, and 20s around a dime. Inking hundreds costs just over 12 cents per note.