A war-torn Italian ghost town immortalized by a legendary Hollywood director blurs the lines between fiction and reality; experts investigate and uncover a forgotten landscape of ruins captured in a WWII documentary. Stories: 1) St Peter's Seminary, Cardross, Scotland; 2) San Pietro Infine, Campania, Italy; 3) Krampnitz Cavalry School, Potsdam, Germany; 4) Chacabuco, Antofagasta, Chile