Inside the world's deadliest prison where the lights are never switched off, inmates are only allowed one item in their cell.

A celebrity broadcaster recently visited the world’s most dangerous prison, situated in El Salvador, where he discovered a pitch-black room, known as the ‘punishment hole’, emitting a bizarre foul ...

‘Holy cow!’ What happened when Richard Madeley visited the world’s most dangerous prison - The ‘Good Morning Britain’ star ...

From high-security facilities to infamous death row prisons, these are the 25 Most Dangerous Prisons in the World. Brace yourself for a tour of some of the most feared and brutal correctional ...