They are home to habitual criminals and incorrigibles and have long histories of overcrowding, protests, riots, violence and bloodshed. Visit some of the most intense and toughest prisons in the world as THE BIG HOUSE profiles the penitentiaries, prisoners and wardens that have made history. From the Maze in Belfast – the scene of many famous moments including the 'Dirty Protests' and Bobby Sands' hunger strike – to LA County Jail, whose inmates have included gangsters like Bugsy Siegel and Mickey Cohen. Go behind the scenes at the jails which have built up a notorious reputation as the home to some of the world's most dangerous men.