An astoundingly cool 360 degree virtual tour of New York City, from the folks at Air Pano.
The thing to keep in mind is that you can twirl this thing, change the perspective (looking more from the horizon), zoom out, and zoom in by clicking on any of the points of interest. You need to play with it a bit to get a sense of how it works.
Just very cool. Oh, and you can see an even larger version of the map below by clicking here.