PHILADELPHIA, Pa - An abandoned prison that once housed Al Capone is now one of the largest haunted houses in the U.S.
Eastern State Penitentiary is now the home of "Terror Behind the Walls," a showcase of evil doctors, deranged prisoners and other spooky haunts.
Dozens of creepy actors roam the halls scaring unsuspecting visitors.
The actors are not allowed to grab people, but guests that are comfortable with that can wear a glow-in-the-dark necklace that lets actors know it's OK.
The prison haunted house, which is in its 22nd year, has six haunted attractions throughout the building.
Eastern State Penitentiary is centuries-old and is preserved in a semi-rundown state. It closed as a prison in 1971.
For more information on the haunted house, visit http://www.easternstate.org/halloween
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