A prison with a terrifying past once housed America's most notorious criminals, the fortress stands in ruin, and experts reveal evidence of ghostly secrets hidden in the crumbling jailhouse walls.
Stories:
1) West Virginia Penitentiary, USA;
2) National School of Art, Havana, Cuba;
3) The Quarries of Montigny, Oise, France;
4) Chatterley Whitfield Colliery, North Staffordshire, UK
