Call me grungy, but I'm quite the fan of metal Lattice (ref. pic #2) on the sides of buildings. It gives the sides of the building a neat 3-D hologram effect, and can serve a practical purpose. So aside from looking neat, what is their purpose here? I could see them being used on residential structures to cut down sunlight during the day in summer, and light pollution from street-level during night, while maintaining a persons views, but that doesn't look to be the case here.
My favorite example of a metal lattice would be the new NY Times building:
photo by me
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