. Halloween in Philadelphia - Terror Behind the Walls at Eastern State Penitentiary The Eastern State Penitentiary, which is in the Fairmount section of Philadelphia, was considered to be the world's first true penitentiary. The prison is currently a U.S. National Historic Landmark, which is more known during the Halloween season for it's creepy and ghostly tours. History Eastern State Penitentiary was built in 1829, becoming the most expensive public structure ever built and quickly … [Read more...]