The Eastern State Penitentiary gatehouse as viewed from the second level, in Philadelphia, Pennsylvania April 30, 2014. Opened in 1829, with the original corrective system of "confinement in solitude ... more 
The Eastern State Penitentiary gatehouse as viewed from the second level, in Philadelphia, Pennsylvania April 30, 2014. Opened in 1829, with the original corrective system of "confinement in solitude with labor," the penitentiary housed about 75,000 inmates in its 142 years of operation. At Eastern State reunions, former inmates, staff and guard gather to share memories and trade stories and get a chance to describe their experiences in question-and-answer sessions with the public. (REUTERS/Mark Makela) less 
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Reuters | Photo By REUTERS/Mark Makela
Tue, May 6, 2014 4:00 PM EDT