The Frank Stella’s are the best. They are all over the city and they always look amazing. Two of my favorites are the Saatchi and Saatchi lobby (pictured) and the Citi Corp building in Midtown.
The best underground shows you will find will have free pbr and models as far as the eye can see. They are rarely announced, so keep your eyes out for promising openings, especially with Milk Underground coming up.
The operators of the Peter Pan bakery make the best donuts I've ever tasted. This place is charming to its core. Decor and presentation: circa 1971 & virtually unchanged since.
The best freshly pulled noodles. My favorite is braised pork with noodles in broth, celery and cilantro add a delicious freshness. Perfect for a cold day.
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.