The Avenida de Mayo is a large avenue in the Montserrat district of Buenos Aires, Argentina. Planned as a majestic boulevard based on the Parisian model and opened on July 9, 1894 after heated arguments, the Avenida de Mayo is now a symbol of Argentine-Spanish relations and reflects the social problems of Buenos Aires. The avenue, lined mainly with maple-leaved plane trees, connects the historic Plaza de Mayo with the Plaza del Congreso (picture) and halfway crosses the 16-lane main artery Avenida 9 de Julio. - 1973
