The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse
The following shall be considered lawful reproductions: (...) (9) the reproduction of a work of art permanently displayed in a street, square or other public place by means of a technique different from that used for the making of the original; with respect to buildings, the said right shall be limited to the external elevations