Mister Zundt says diesel vehicles are the main cause of air pollution in Sao Paulo.

VOA: special.2009.09.07

Tino Therezo in Sao Paulo wants to know about Joshua Norton.

VOA: special.2009.12.14

The streets of Sao Paulo,Brazil are also rich with artwork.

VOA: special.2009.04.08

The bus carries passengers in communities around Sao Paulo.

VOA: special.2009.09.07

Sao Paulo has almost twenty million people.

VOA: special.2009.09.07