In Germany it must be Duisburg, especially the part of Marxloh.
There are lots of non foreigners and immigrants, streets full of trash, broken buildings, probably the highest criminality in all of the cities in North Rhein Westfalia
Police don't even dare to help anymore cause otherwise they'll probably get shot or smth, they just send some ambulances when the trouble is over
It's also very famous for most of those reasons and because of dem niggers