Interesting looking at the Zones Urbaines Sensibles maps. In the case of Paris, you can at times see the Pruitt-Igoeish central planning mentality from the air, including apartment blocks sandwiched between freeways. In others, it is the older mixed use, working class sections of the north end of town that are now on the skids. It appears that large swaths between the Gard du Nord and Père Lachaise and extending south to Blvd. Haussman and Place de la Republique are now off limits. Not good.