Its official name is the U.S. Penitentiary Administrative Maximum Facility, but everyone calls it "ADX" or "ADX Florence." The ADX in Florence, Colorado, is the one and only federal "Supermax ...

Located in the United States, ADX Florence, is known as one of the world ... Thailand's Bang Kwang Central Prison has earned its reputation of being one of the world’s worst prisons due ...

When inmates arrive at the United States Penitentiary Administrative-Maximum Facility in Florence, Colorado, it immediately becomes clear: ADX, the nation’s most secure Supermax prison ...