Mcgolrick Park at midnight in the snow. Any early morning with all the bums and drunks passed out on Nassau Avenue. NYC still looks best between 3am and 6am, just before the light comes in to shine on all its flaws.
Best pizza in NY. Be prepared to wait. Check to see if they are shut down by the health department or tax collectors before going. Get the square pie with pepperoni and hot peppers.