Chuko has the best vegetarian ramen I've ever had. It's kind of ruined me for other types of Ramen. Favorite neighborhood spot with good people running it.
The permanent piece called "Meeting" at MoMA PS1 is an etherial experience of light and color and quiet. Sit and look through the cutout in the ceiling and watch the light change both outside and in. You can't tell what you're looking at until maybe a bird flies by.
Another Gramercy all-star, I really like this place, you need a reservation or early arrival, sitting in the bar is always fun and the food is amazing!