The newest addition to the superhot area of New York only recently worthy of an acronym (NoMad) is this turn-of-the-century hotel updated by the starchitect Annabelle Selldorf. Its restaurant, Marta, resembles a Roman pizzeria, with an immense open-fire grill and wood-burning ovens churning out inventive takes on traditional pizzas, like carbonara (egg, potato, guanciale, and pecorino) and trippa alla Romana (tripe, chili flakes, pecorino, mint).