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
“[...] once a work has been lawfully published, its author may not prohibit: [...] 2/1° the reproduction and the communication to the public of works of plastic, graphic or architectural art designed to be placed on a permanent basis in public places, provided that the reproduction or the communication of the work is as it is found there and that this reproduction or communication does not infringe upon the normal exploitation of the work and does not cause unreasonable harm to the legitimate interests of the author; [...].”