Buenos Aires, Argentina.
After coming back from a day of wandering the streets of Buenos Aires and enjoying unas cervazas in the hostel bar. We heard a large, almost rhymthic, pounding of drums and chanting. A brief stop outside and there is a massive congregation of people holding banners and shouting slogans.
There is always some sort of protest going on down here. This one is about the potential rise of public transport costs from $1 peso to $3 pesos.