Plaza de Mayo

Plaza de Mayo
City square
Features	May Pyramid Surrounded by the Cabildo, Casa Rosada, the Metropolitan Cathedral, the Buenos Aires City Hall, the Bank of the Argentine Nation headquarters and Palacio de Hacienda.
Opening date	1580 (Plaza Mayor) 1884 (unification)
Location	Monserrat Buenos Aires, Argentina
Plaza de Mayo Location of Plaza de Mayo in Buenos Aires
Coordinates: 34°36′30″S 58°22′19″W / 34.60833°S 58.37194°W / -34.60833; -58.37194

The Plaza de Mayo (Spanish pronunciation: [ˈplasa ðe ˈmaʝo]; English: May Square) is a city square and the main foundational site of Buenos Aires, Argentina. It was formed in 1884 after the demolition of the Recova building, unifying the city's Plaza Mayor and Plaza de Armas, by that time known as Plaza de la Victoria and Plaza 25 de Mayo, respectively. The city centre of Buenos Aires, Plaza de Mayo has been the scene of the most momentous events in Argentine history, as well as the largest popular demonstrations in the country. On the occasion of the first anniversary of the May Revolution in 1811, the Pirámide de Mayo (English: May Pyramid) was inaugurated in the square's hub, becoming Buenos Aires' first national monument.

It is located in the financial district known as microcentro, within the barrio (English: neighborhood) of Monserrat. It is bounded by Bolívar, Hipólito Yrigoyen, Balcarce and Avenida Rivadavia streets; and from its west side three important avenues are born: Avenida Presidente Julio Argentino Roca, Avenida Roque Sáenz Peña and Avenida de Mayo. In the square's surroundings are several significant monuments and points of interest: the Cabildo, the Casa Rosada (seat of the President of Argentina), the Metropolitan Cathedral, the Buenos Aires City Hall, and the Bank of the Argentine Nation's headquarters. Underneath its lands are the Underground stations of Plaza de Mayo (Line A), Catedral (Line D), and Bolívar (Line E).