The heart of downtown São Paulo, Praça da Sé is considered point zero where distances to other cities are measured. Many of Centro's main avenues intersect here and the Praça is also home to the city's Catedral Metropolitana. The large square is graced with tropical fig and majestic palm trees and is surrounded by a few beautiful Belle Époque buildings. In the 1970s, the square was landscaped and connected to the neighbouring Praça Clóvis Bevilácqua, thus creating a larger open space. One of the city's main metro stations is also located here. In the last decades, the square has been the stage for large protests and demonstrations that changed the history of the city. Today, it is one of the busiest in São Paulo, but is sadly plagued with homeless and suspiciously idle people. It is highly recommended that visitors absolutely avoid the area after dark.
Named after the famous Paulistano engineer who changed the face of São Paulo at the turn of the century, Praça Ramos de Azevedo is a beautiful green park in the heart of the city's downtown area. The green square was once the city's most elegant spot, surrounded by Teatro Municipal, Hotel Esplanada and other important landmarks. It contains a large fountain with elegant sculptures and offers a respite from the concrete of Centro.
This little church was the first biuildg in the city. It´s located really close from Praça da Se.
There is a restaurant with preformances and city museum inside for a chaep prize, even more if you are a student. In that museum you´ll see the developement of the city during the time, I would spend some time here.