The industrial zone in Solna in northern Stockholm before it was demolished and turned into the Friends Arena, Mall of Scandinavia, glossy offices and housing. From start to finish it was a process of around five years. Something like a year longer than planned due to a delayed construction start.
I worked nearby as the area was being emptied so there were plenty of opportunities to follow the transition. Of course it had enough qualities for Sunday excursions as well. From people who grew up in the area I got to learn that this spot was once a huge garbage dump. I've been searching for info and pics of this in the community archives but found nothing. Either it's something that evaded the archives or it's been mixed it up with two documented city dumps in Råsunda and Skytteholm.