What is an excellent site for identifying film locations?

I just saw the Bourne Ultimatum. At the end of the film, Pamela tells Bourne to meet her using the code "415 71". The street signs in the scene show the corner of 71st Street and York Avenue and a unique gray building with large numbers reading "415". But somehow I doubt this is accurate - aside from the fact that this is the "500" block. I'm a NYC native and am pretty sure that when I go to that corner Pamela Landry's building won't be there. They may have covered the signs with different info (for some unknown reason).

I Google-mapped, etc., etc. But no clear answers.

So that raised a question - Is there a very good site that tells you accurate information about film scene locations?