Best pizza in NY. Be prepared to wait. Check to see if they are shut down by the health department or tax collectors before going. Get the square pie with pepperoni and hot peppers.
The best selection of photography books...From novelties to rare out of prints. They are also publishers and organize books signing with photographers such as Juergen Teller or Taryn Simon.
I discovered the Frick my first week in New York, during a heat wave in August. The galleries were surprisingly empty, with only the occasional visitor strolling through the rooms, gently creaking the floorboards. I stood for a while in front of the Bronzino, a portrait of a boy standing against a background of green drapery, and then sat in the courtyard for a long, cool hour.
The Brooklyn Flea is another treasure trove of odd finds, cool artifacts, and handmade goodness. If you're looking for inspiration or just something cool to hang on your wall, you can probably find something here. And if all that treasure hunting leaves you hungry, you are in luck--there's a delicious assortment of local food vendors and artisans there too.