Where can I find on-line viewable maps that show the distribution of
income for
major European cities, and major Latin American cities?

i.e. I need some income maps (not data) of major cities in the Latin America
and Europe that show where the poor live, and where the rich live. 
The income maps would need to show the location of where people live,
based on how much money they make per capita, or average family income
per year.  I DON'T need income maps of the cities in the U.S.-I have that.  I
need these income maps for at least 5 major cities in Europe, and at least 5
major cities in Latin America.

For instance, in Europe: In need income Maps for cities like Paris,
France; London, England; Stuttgart, Germany; Lisbon,Portugal; Madrid,
Spain.  Income Maps for the capitals of 5 major European Countries
will do.
In Latin America: I need income maps for Buenos Aires, Argentina;
Bogota, Columbia; Lima, Peru; Sao Paulo, Brazil.  Income maps for the
capitals of 5 Latin American countries will be fine.

Note:  The purpose of these maps is to show where the rich and the poor live
in these cities.  I would prefer these in English, but if they show
income amounts in a legend in the language of the country, that is
fine.