"Urban Legisode: Eastern State Penitentiary" explains Eastern State Penitentiary, a reform idea that is now best known in Philadelphia for being a great landmark for telling your friends how to find the local restaurants and for the annual Halloween Terror Behind the Walls.
(There also used to be a Bastille Day party that involved throwing Tastykakes at onlookers but that's at least temporarily gone.)
Urban Legisode: Eastern State Penitentiary