25. Find a special class for yourself
I am sure, there is something that you always wanted to learn. Just head on over to Class Curious and browse through the massive database of all sorts of classes there, and pick one that suits your needs. This city has a class for pretty much anything you can think you want to learn about. It does not matter whether you are a permanent resident of NYC or just visiting as a tourist, you will definitely find the class you are looking for.