This is the first glimpse inside the largest detention centre in Europe that is currently preparing to open on the outskirts of Vladimir Putin's home city of St Petersburg. The giant jail (pictured is the interior and exterior) will hold 4,000 inmates and replaces the notorious Kresty prison which housed political prisoners during the tsarist and Soviet eras. Called Kresty-2, the new penitentiary, announced personally by Putin nine years ago, will accommodate both men and women - including those with young children - in separate facilities.