Once upon a time this area was the beating heart of industrial-era Berlin. The proud factories of Siemens, with the working class houses spread around it and the idyllic Jungfernheide swimming pool around the corner.
Manufacturing is still continuing, but not in the amounts that made thousands of workers flock to the northwestern part of the city. And when the S-Bahn was boycotted in the eighties by people from the west, because the service was run by the GDR regime, this connection quickly became a lossmaker.
The result: from the railway bridge across the canal on the S-Bahn has been out of service for decades. Nature is winning the fight against tracks and bricks. It makes for a difficult but nice 90 minute walk. Right through a domestic area, but still on your own: something like that can almost only happen in Berlin.