It is not so easy to get nice aereal views in Buenos Aires if you are not rich. Yeah, private property.
However it is not so expensive to take the guided visit to Palacio Barolo. Here I share my pictures.
Can you see the house on top of a building? Next to the famous obelisk.
Only next image taken from: Palacio Barolo
Another picture of "Congreso" and the square next to it: