I have heard a lot of negative comments about Detroit in my life but had not seen anything like this before. It is not too different from pictures of cities abandoned near Chernobyl because the high radiation makes them no longer habitable -- only people still live in Detroit. The city still exists.

It also makes it all the more clear that buildings are the way they are only so long as living humans make active use of them and, thus, routinely maintain them. I think I and most people tend to think of buildings as being more static and permanent than they really are. Our cities/structures are imbued with life only as long as people imbue them with such, not because of the buildings that were once built there.