Here are some pictures of the phenomenon, which now is suspected of being, of course, intentional.
Meanwhile, deep down in the guts of earth, the subway is taken by poets, as a poetry lectures and publications series take place in the subway cars and stations.
The campaign, promoted by the city's Secretary of Culture is called "No hay ciudad sin poesía" (There's no city without poetry), and is a big success among urbanites.
Works of art by latin american poets like Miguel de Unamuno (1864-1936); Juan L. Ortiz (1896-1978); Rubén Darío (1867-1916); and Miguel Hernández (1910-1942).
This is one of the poems commuters can read (sometimes stranded like cabagge at rush hours; sometimes alone in a wagon, in the early morning), by Miguel Hernández:
If love is not the enterprise
If they not be the words
If they do not die from love
And here are some of the ads portrayed all along the subway lines:
Finally, back in the surface, British artist Julian Beever is painting one of his fabulous pieces of work in Roque Saenz Peña pedestrian street.
The artist was brought by cell phone company Movistar, in a campaign that has already brought many artists to manifest their art in public spaces.
I was able to exchange a word or two with him at a lunch break, and he said he was "excited and happy" of being working here.
The people gathered around his work ground, or "street atelier" were excited too, as the image as a 3-dimensional dragon (or animal of the likes) emerges by the hour.
Here's Beever, working the streets of Buenos Aires, and some of his great work around the globe. What he'll do here, I'll tell you in a couple of days. Bye !