What places to visit in Sao Paulo if you have only 3 days?
If you enjoy museums go to Avenida Paulista. There you have many and each one different from the next one.
The biggest is MASP at Av Paulista, 1578 - a wonderful museum. It also has a caffeteria and a good restaurant.
In Av Paulista there are also shops, shopping center, etc. There is a big Central Market (Mercado Central at Rua da Cantareira, 306 with vegetables, fruits,etc.
Also brazilian fast food.