An image taken from http://www.un-titled.fr (at http://www.un-titled.fr/2011/05/au-dela-du-periph/) showing the Noisy-le-Grand bidonville. This is in fact an “improved” slum, thanks to the actions of Abbée Pierre, an influential priest that adressed the housing crisis and became an iconic figure of the french culture.

In France a bidonville was a slum made with tin sheets, appearing during the 1950s-1960s usually associated to migrants from the Mediterranean basin, but also with french populations. The upper image is in a municipality some 13 km east of Paris, that I happen to know well. Nowadays this image is gone. Just look for that in the current image, and you will not find it, as it has been removed due to the social housing policies of the country.