This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help.
Summary
DescriptionThe Post Office and administrative building in Zagreb.jpg
English: Main Post office building in Zagreb, Croatia.
Date
Source
Own work by the original uploader
Author
Haganj
Camera location
45° 48′ 44.32″ N, 15° 58′ 49.13″ E
View this and other nearby images on: OpenStreetMap
45.812311; 15.980314
Licensing
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
You are free:
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.