Every day, millions of coins and bills change hands across the United States, most of them holding only their face value.

A piggy bank in the days of bitcoin and online banking might seem quaint or even archaic. But even as digital currency ...

It quickly outgrew its first building and moved into a new one in 1874. This building, the Old United States Mint, also known affectionately as The Granite Lady, is one of the few that survived ...