The reverse (back) of the Pennsylvania state quarter features Independence Hall in Philadelphia – the historic building where both the Declaration of Independence and the U.S. Constitution were debated and adopted.
Released in 1999 as the second coin in the 50 State Quarters Program, the design highlights Pennsylvania's pivotal role as the "Keystone State" in the nation's founding. The quarter also includes the state motto "Virtue, Liberty, Independence" and the year of statehood (1787).