This is a picture of the statue of Gral Artigas, in Plaza Independencia. There is a mausoleum beneath the statue, with the rests of the national hero.
This is Plaza Cagancha, also called plaza libertad, with our uruguayan version of the liberty statue, kinda new york's statue after the flu. Check out the anarchism graffiti at the bottom. This square has a nice hippie and naturist market.
This one's infomally called "Plaza del entrevero" which means something like square of the mixed up, after the statue in the middle representing several horseman in the heat of battle, where they are all kinda mixed up. Actually noone remebers it's real name which is plaza fabini i believe.