NYU Library
Most of the university libraries in the US offer public entrance and reference. Here is the exception.

The NYU Shuttle Bus
This is the most cute shuttle bus that I've ever seen.

The Gym
See the person running on the roof? Due to the difficulty in acquiring new land in crowded Manhhatan, the field was built on the roof of the gym. Be careful when you jogging, or you will fall on to the streets.

Columbia University
It is the only pure land near Harlem. When you take subway to Columbia, you will find all the passengers are black.