Avenida de Mayo runs approximately one mile between Plaza de Mayo and the Casa Rosada to Plaza de Congreso. En route you will cross the widest avenue in the world – Avenida de Julio – which is made up of seven lanes of traffic running in either direction.
Torcuato de Alvear, the first mayor of Buenos Aires, envisioned a street in Buenos Aires that would rival those in Paris. After nine years of construction, Avenida de Mayo was inaugurated on July 9, 1894.
The 154-year-old Cafe Tortoni is the oldest coffee shop in Argentina. It is located at Avenida de Mayo 825 near Avenida de Julio.