I stumbled across this today on weather.com, of all places.
http://www.weather.com/travel/modern-ruins-abandoned-detroit-photos-20130715
I think the pictures are facsinating at the same time they're sad.
Those are as you describe.
I was thinking, instead of retail, sports, etc, why not put stuff in Detroit that most places don't want?
Think about it. What's one of the biggest growth industries in the country right now? Energy. What does that mean? We need more refineries, gas power plants, and nuclear power plants. What if a place was centrally located, had good transit connections, lots of land, but nobody living next to it? Also it was already polluted so you wouldn't be ruining pristine land if any of these things were located there. Gee, does that sound like anywhere we know?
Now before somebody accuses me of kicking a place while its down, why not give the remaining residents both an increased tax base plus the jobs that would come with locating these things in a cleared out section or sections of the city. Instead of building the Keystone Pipeline to Texas for example, how about just routing it to Detroit which is a lot closer???