The Three Powers Square is a large open space between the three monumental buildings that represent the three branches of the Republic : the Planalto Palace ( Executive ), the Supreme Court ( Judiciary ) and the National Congress ( Legislative ). As in almost all the thoroughfares of Brasilia , the urban part was conceived by Lucio Costa and the buildings were designed by Oscar Niemeyer .
The Three Powers Square, located at the eastern end of the Pilot Plan is an open space measuring about 120 × 220 meters, so that the buildings representative of a power does not stand out before others, mindful of the principle that the powers harmonics and are independent and therefore have the same weight.

It is not a traditional square, because it has no trees or any other element that provides shade to the people who remain in it. Vegetation, only the royal palms that surround the large water surface up to the Congress.

As the buildings around the square, in the north and south directions, occupy small area in relation to the total area of ​​the street, we obtained an impressive sculptural effect. During the night, cause a significant effect the play of light directed to the columns of white palaces, suggesting they are suspended in the air.
The Flag of Brazil in the Plaza of the Three Powers, with the Congress in the background.

In addition to the palaces, the Square of Three Powers, The Warriors includes sculptures of Bruno Giorgi , considered a symbol of Brasilia, and Justice, sculpture Ceschiatti Alfredo , opposite the Supreme Court. You can still see the country and the Pira Marco Brasilia, after the act of Unesco who said the city World Heritage Site .

On the east side of the square is the Historical Museum of Brasilia , on whose facade one can admire a sculpture of the head of Juscelino Kubitschek . In the Square is still the Pombal, a sculpture by Niemeyer, specifically, commissioned by First Lady Eloá, wife of President Quadros . Also in the Square is the flagstaff, a monument was authored by Sergio Bernardes hundred feet high and contained in the Guinness Book of Records as the world’s largest flag flown.

In the west face, is the homeland of the Pantheon , built in honor of President Tancredo Neves , and which may hold the remains of illustrious figures in Brazil. Its shape gives the image of a dove. In the main hall can be admired the stained glass by Marianne Peretti and workshop on Mining Conspiracy of East London . In the Red Room, you can enjoy the panel Bulcão Athos . Have had their names inscribed in the book there exposed steel, the names of various historical figures.

Espaço Lucio Costa, located under the floor of the square, shows a model of Brasilia, with 179 square meters.

The Space Oscar Niemeyer , is located on the back of the Three Powers Square. It is a cylindrical building with an area of ​​433m2, where you can admire the work (panels, drawings and photographs) that represent the work of this architect. Although a bit removed, in relation to other monuments, is considered part of the square.

The Plaza of the Three Powers is a point of tourist attraction and popular concentrations, not only the civic, as the changing of the guard the presidential palace and flag-raising, but also of the great demand and protest demonstrations.