Gianotti arrived in Buenos Aires, in 1909 where, together with his compatriot, Mario Palanti, he took charge of the construction and decoration of the Italian Pavilion at the International Centennial Exposition of 1910.
In 1909, Gianotti traveled to Buenos Aires, partnering with compatriot Mario Palanti to oversee the building and design of the Italian exhibit at the 1910 World's Fair.