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.
NYC's skyline has been drastically changing, and Frank Gehry has added a real masterpiece with 'New York by Gehry at 8 Spruce Street'. It is subdued compared to Gehry's other work, but also elegant, subtle, and delicate. When you stand directly under it the skin of the building can best be described as reptilian.
One of my lunch favorites - start with the crab toast lemon aioli, then roast carrot avocado salad, Kasha and Bowtie pasta with Meatballs - and their homemade sodas and green juice are awesome!