There is people that love to share their works. Some of them are really good and love to use large surfaces, like walls in public garden, to paint their message.
Even if I disagree when this kind of art moves over the normal respect for the public property, have honestly to say that some of this artists are really good. Who doesn’t know, or seen, one of the incredible works by Fairey or Bansky?
Here below some works I saw in Mestre, Parco Bissuola, by unknown artists.