I live in São Paulo (the city mentioned in the article) and I always find it amusing how you can tell exactly where São Paulo ends and the neighboring city (Guarulhos) begins just by the billboards.

Here’s São Paulo’s welcome sign coming from Guarulhos. There are lot of billboards before it, but exactly none after.

https://maps.app.goo.gl/Dw8AFJS2sNRW27PL9?g_st=ic