Folha.com (what could be considered the equivalent of the New York Times here in Brazil) is publishing special articles on the 457º Anniversary of the City of São Paulo.
The articles are written in Portuguese. But you can enjoy a few images of São Paulo Urbanization here.
Guarapiranga dam
(photo credit: Base Aerofogrametria)
The planned neighborhood of Vila Formosa.
(photo credit: Base Aerofogrametria)
You can visualize other areas here (lazy link).
There is also a "before and after" session with pictures of São Paulo central area.
ps. Happy Birthday São Paulo !