The 10 Worst Prisons in America: ADX
A federal isolation facility that's "pretty close" to hell.

Known as ADX, and nicknamed the "Alcatraz of the Rockies," this is among the most secure prisons in the world—and one of the most isolating: Many of its cells, fashioned out of poured concrete with solid steel doors, are equipped with built-in showers and automated chutes that open onto p...

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