you mentioned you were a NYC tour guide-- what site do you think the best in NY? I think Empire state building, 42nd Street library, and Brooklyn Bridge the three best places (last two are free!)

Yep, I agree, though one must always point out the Statue of Liberty. When I did the Harlem tour I'd add the lovely memorial to Duke "Take the A-Train" Ellington to the itinerary.

Now, for extra points, what are the names of the library lions there at 42nd Street?