I'm not going to get into a whole thing here with you about whether or not Manhattan is one of Woody Allen's best movies or not (it isn't) (okay maybe top five) - but I will offer you a somewhat unique idea for you take part in if a) You're a fan of his movies and b) You find yourself in New York City.
You know that gorgeous bench scene in the movie? It was shot at Sutton Square and you can see it for yourself if you walk all the way east on East 58th Street in the city. I've only gone in the daytime, but I'd imagine it's more lovely than words at night.
My sad attempt.