![Washington State Prison at Monroe](https://c1.vgtstatic.com/thumb/1/3/13526-v1/washington-state-prison-at-monroe.jpg)
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![Varner Unit](https://c1.vgtstatic.com/thumb/1/9/198754-v1/varner-unit.jpg)
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![Graz-Karlau Prison](https://c1.vgtstatic.com/thumb/1/6/164552-v1/graz-karlau-prison.jpg)
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![El Dorado Correctional Facility](https://c1.vgtstatic.com/thumb/1/9/198758-v1/el-dorado-correctional-facility.jpg)
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![Qincheng Prison](https://c1.vgtstatic.com/thumb/1/0/102274-v1/qincheng-prison.jpg)
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![Naval Consolidated Brig](https://c1.vgtstatic.com/thumb/1/7/177304-v1/naval-consolidated-brig-1.jpg)
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![William E. Donaldson Correctional Facility](https://c1.vgtstatic.com/thumb/1/9/198753-v1/william-e-donaldson-correctional-facility.jpg)
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![Secret Chechen Prison](https://c1.vgtstatic.com/thumb/2/1/215287-v1/secret-chechen-prison.jpg)
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![Nevada State Prison](https://c2.vgtstatic.com/thumbll/1/9/198757-v1/nevada-state-prison.jpg)
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![Thane fort, now central jail](https://c1.vgtstatic.com/thumb/1/4/148154-v1/thane-fort-now-central-jail.jpg)
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![Freiburg prison](https://c2.vgtstatic.com/thumbll/1/0/102272-v1/freiburg-prison.jpg)
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![Montelupich Prison](https://c1.vgtstatic.com/thumb/1/7/172555-v1/montelupich-prison.jpg)
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![Doing Hard Time at Graterford Prison](https://c2.vgtstatic.com/thumbll/2/2/22151-v1/doing-hard-time-at-graterford-prison.jpg)
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![Kern Valley State Prison](https://c2.vgtstatic.com/thumbll/4/8/48834-v1/kern-valley-state-prison.jpg)
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![Tyrrell Prison Work Farm](https://c1.vgtstatic.com/thumb/2/1/213418-v1/tyrrell-prison-work-farm.jpg)
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![Parapana Agrahara Central Jail](https://c1.vgtstatic.com/thumb/3/2/32906-v1/parapana-agrahara-central-jail.jpg)
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![Yodok concentration camp](https://c1.vgtstatic.com/thumb/9/7/97470-v1/yodok-concentration-camp.jpg)
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![Push ups in prison](https://c1.vgtstatic.com/thumb/2/0/20655-v1/push-ups-in-prison.jpg)
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![FKU IK-3, Kharp](https://c1.vgtstatic.com/thumb/2/6/269536-v1/fku-ik-3-kharp.jpg)
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![Cayuga Correctional Facility](https://c1.vgtstatic.com/thumb/2/1/211209-v1/cayuga-correctional-facility.jpg)
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![Farm Colony Ruins](https://c2.vgtstatic.com/thumbll/1/5/15817-v1/farm-colony-ruins.jpg)
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![Preston Castle](https://c1.vgtstatic.com/thumb/8/7/87424-v1/preston-castle.jpg)
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![U.S. Federal Correctional Institute- Fort Worth Facility](https://c1.vgtstatic.com/thumb/5/0/5052-v1/u-s-federal-correctional-institute-fort-worth-facility.jpg)
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![Abandoned peruvian prison](https://c1.vgtstatic.com/thumb/8/9/8949-v1/abandoned-peruvian-prison.jpg)
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![Huntsville Prison Cemetery](https://c1.vgtstatic.com/thumb/2/4/24478-v1/huntsville-prison-cemetery.jpg)
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