Inside the square is the famous May Pyramid
There is no tourist who has come to Buenos Aires and has not passed, even from the top of a car, through the Mayo Square. It is a site of great historical significance. All the important events in Argentine history, except for the Declaration of Independence that was in Tucumán, had the Mayo Square as protagonist: some of them are October 17, the May Revolution, the marches of the mothers, the speeches by Eva Perón from the balcony of the Casa Rosada, the ceremonies of assumption of the new presidents, countless social demonstrations; among many other events. From the Plaza you can see the Casa Rosada, the Cabildo, the Cathedral of Buenos Aires, the seat of the Government of the City, the Central Bank and the Ministry of Economy; among others. Inside the square is the famous May Pyramid, the historical fountains, the handkerchiefs painted on the floor that mark the Mayo Square Mothers and beautiful green spaces with jacaranda trees, plane trees, palm trees and a ceibo tree.
Hint: In 1955 there was an attempted coup against the then president, Juan Domingo Perón, which consisted of an aerial bombardment of the Mayo Square. While the coup failed, the bombing killed about 310 people and wounded 700 others; between military and civilians. As of today, the walls of the Ministry of Economy still show the consequences of that attack: one of its granite walls is clearly damaged by the splinters of bombs and bullets.