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
Reproduction of works permanently found in public spaces, i. e. streets, squares, parks, rest areas and other open areas that are accessible to the public, is allowed without the authorization and compensation from and towards the author or copyright holder.
The works referred to in paragraph 1 of this article cannot be reproduced in three-dimensional form.
With regard to the reproduction of architectural structures, paragraph 1 of this article applies only to the external appearance of the architectural structure.
In the cases provided for in paragraph 1 of this article, the source and authorship of such copies shall be indicated, where applicable.