Sao Paulo, city of high-rises and antennas

As a guest of the Festival Internacional de Curtas Metragens I get a room in a hotel quite close to the city center. Walking through Avenida Paulista one wonders about the endless line of high-rises and antennas on their roofs. The antennas are almost as high as the buildings on which they rest. Apart from that the city looks like a western metropolis, except that there is NO ADVERTISING. That sure makes a contrast.