In just over two decades, Brazilian Helio da Silva has single-handedly planted about 40,000 trees in the urban jungle that is Sao Paulo. The former food industry executive says he was called "crazy" ...
The Tiquatira Park in Sao Paulo is the life's work of Helio da Silva Helio da Silva says he was inspired to leave a legacy to the city where he made a new life Before the park, the strip was a hangout ...