File:Ankara 3D.png

Summary

Pseudo 3D-mapping of buildings, very funny! This is the URL of the destination [1]

These "3D Buildings" are actually other map elements misused in way not to resemble reality but to render in default map display as a 3D image of a building. They are actually made with barriers, buildings, and landuses. Also some sections of roads were not mapped because they were "behind" the "buildings".
Yes, this was actually mapped, it is not a theoretical example.

Licensing

This screenshot contains OpenStreetMap Carto rendering.

The OpenStreetMap Carto map style is made available under the Creative Commons CC-0 1.0 Universal Public Domain Dedication.

Attribution to the map data:

Contains map data © OpenStreetMap contributors, made available under the terms of the Open Database License (ODbL). The ODbL does not require any particular license for maps produced from ODbL data, produced maps may be subject also to other licences.