There is perhaps nothing more poignant than an abandoned prison. When you see these haunting images, it's hard not to imagine what once went on in these now-crumbling rooms.
A jail on the island of Procida in Italy, built in 1563 as a castle, transformed into a prison in 1815, closed in 1988.
(via Luca Terracciano)
Vilvoorde Prison, Vilvoorde, Belgium, opened in the late 18th century as a prison, later used as a military hospital, barracks and a dentention centre. It was closed in 1974.
(via Rana X)
And here's Al Capone's cell: