Coin collectors will love this place, but this museum's exhibits will capture the attention of most anyone who has handled money. There are about one quarter million coins here, with specimens as old as money itself (about 4,500 years old, to be precise) in “The History of Money” exhibit, as well as U.S. currency dating back to the late 1700s. New is the Mini-Mint that gives visitors a look at minting processes from centuries past, with demonstrations on the third Saturday of each month. Allow about an hour.