Being on the ground floor of the building I work in, this Japanese outpost serves as my everything store. I appreciate their minimalist aesthetic coupled with their modest pricing.
This is probably my favorite restaurant in Manhattan, it's Spanish Tapas but like you never had it before. You can literally order any dish from the menu, everything is amazing. Tip, it tends to get busy - so head in and sign up for a table, then go around the corner to their bar Jamón only challenge is that you might stay there all night.
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.