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
It shall be permitted, without the right holder’s authorisation and without payment of remuneration, to reproduce, except in a three-dimensional form, the copyright works, which are permanently located on streets, squares, parks or other places available to the public, and to distribute and communicate to the public such reproductions.
Note also the second paragraph of the same article of the same Act:
The limitation referred to in paragraph (1) of this Article shall apply only in respect of the outer appearance of an architectural structure.