The colourful Caminito Street, in the heart of La Boca.
This is defnitely a highlight when travelling in Buenos Aires.
All the tourist guide books will tell you to visit the area, as it's full of art, music and culinary delights.. truly an aphrodesiac of the senses.
One thing to be careful of, however, is that the streets surrounding the touristy ones are in an area stricken with poverty.
The marriage of the two areas unfortunately has lead to slightly escalated levels of pickpocketing. When venturing to this beautiful region, please use good judgement and be wary and protective of your valuables.