The documentary Abandoned Berlin visits derelict and abandoned places in Berlin. The movie is by Jordi Busquets and features extracts from an interview with blogger Ciarán Fahey: “When I see a fence and it says BETRETEN VERBOTEN (no trespassing) … it’s almost an invitation and you have to accept it.”
Berlin besetzt is a website that visualises squatted places in Berlin from 1970 onwards. The site provides for information and archival material on individual squats. Check also on the SqEK mapping project, which is an attempt to collectively extend this mapping approach to other European cities.