The Monolith is outside the UN

I'm listening to the audio book of 2061 and Clarke has the TMA-1 monolith moved from the moon to outside of the UN building in New York City.

Any thoughts on what that would look like? I guess snow would pile on top but would rain bead on it? Would it still be pitch black at noon on a 90 degree day? Would it get hot? Would spray paint stick to it?

In 2010 in an attempt to break off a sample, they hit it with lasers and nuclear weapons and nothing happened.

There was an episode of Dr. Who when the Doctor hides the TARDIS by putting it 5 seconds into the future. In the first Star Trek pilot, the Talosions use of illusion had the crew of the Enterprise firing phasers and practically destroying the surface of that planet.

I always thought there would be some mind bending super tech in use with the monoliths. What would it look like in public?