That's fascinating. Looks like this is due to the clean city law put in place in 2006 that removed upwards of 15000 billboards and other outdoor ads. The wikip

That's fascinating. Looks like this is due to the clean city law put in place in 2006 that removed upwards of 15000 billboards and other outdoor ads. The wikipedia entry [1] contains an account from a local reporter there. Here's the first bit: > São Paulo is a very vertical city. That makes it very frenetic. You could not even realize the architecture of the old buildings, because all the buildings, all the houses were just covered with billboards and logos and propaganda. And there was no criteria. And now it is amazing. They uncovered a lot of problems the city had that we never realized. [1] https://en.wikipedia.org/wiki/Cidade_Limpa https://en.wikipedia.org/wiki/Cidade_Limpa