La Casa Rosada ("The Pink House"), officially known as the "Government House" or "The Presidential Palace", is the official seat of the executive branch of the Government of Argentina. The President works there but doesn't live there, the presidential residence is the Quinta de Olivos, a compound in Olivos, Buenos Aires Province.
The Casa Rosada sits at the eastern end of the Plaza de Mayo. Its characteristic colour is pink and it's consider one of the most iconic building of Buenos Aires. Besides, on the inside theres the Casa Rosada Museum, including related objects with the country's presidents.
Balcarce 50, Downtown
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Subways: Line A, Plaza de Mayo Station; Line D, Catedral Station; Line E, Bolívar Station.