America's 'most haunted building': Tortured souls of inmates believed to roam dank ruins of prison that pioneered solitary confinement and once held Al Capone

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http://www.dailymail.co.uk/news/article-3001010/America-s-haunted-building-Tortured-souls-inmates-believed-roam-dank-ruins-prison-pioneered-solitary-confinement-held-Al-Capone.html

    Prisoners at Eastern State Penitentiary were kept in solitary confinement which some say induced mental illness
    The guards are believed to have tortured the inmates and covered their heads with hoods when outside the cells
    Shut down in 1971 and reopened in 1996 as a museum and Halloween attraction but ghostly sightings continue
    Visitors have reported anguished cries coming from the cells and a shadowy figure who watches over the prison