Another one added, the
Chrysler Building in New York City, NY, United States!
I'm really happy with this one. It's not dissimilar from the Empire State Building in the layout and arrangement of windows but many of the elements are unique to this structure, such as the ornamental designs around certain roof portions and the gargoyles/statues on the corners of two levels, not to mention the iconic curved, tiered roof design with triangular windows.
I never knew that the back side was angled - this provided a unique challenge to duplicate the elements on the front side while having them follow the facade at the appropriate angle.