Moma is worth a visit, but for a more lively Art experience ánd for free, one should visit Chelsea. A colony of 400 Art Galleries, showing the best in contemporary art. Running straight through is the high line, a 1 mile long linear park, build on a former railroad-spur, worth the walk.
Coming back from from New Haven, we got off at Grand Central and he took me down one of the concourses to the place with the vaulted ceiling. He stood at one corner and I stood at another and we whispered into the walls, our voices drifting across to each other.
You need to make a reservation for L'Artusi years in advance... or at least the week before, if you try a walk-in then ask to be seated at the bar, as always in New York that is the best seats at any of my favorites restaurants.