That used to be a terrible neighborhood. So based on what I know about 125th and Riverside Dr., 50 years ago, I could say something that actually was a fact, but which may not be true now. That would be a whole lot closer to reality, than you moving Grant's Tomb down about 1/2 a mile.
Did you ever sit in a WWII bomb shelter, on Riverside drive? Ever taste the leftover water, stale from 50 years in a can? Ever hang a tree fort off a building? Between Buildings? A street adress is pretty damn trivial.
Hey, do you know how to get into the columia university chapel from the underground? I do.
But then, as you say, I am a fake.