[B.A.R]

BAR is the most POPular word in the world, a crossing point where different street cultures can meet, it comes from the term "barred".
In the past some wooden planks were nailed on the doors of the shops where the word "barred” was drawn with lime.
The acronym B.A.R, [Berlin, Amsterdam, Rome] is a metropolitan trip with no barriers with the intent to paint something which remembers the etymology of the term.