The child-free area, called the "Quiet Zone, " has softer lighting and is sectioned off from the rest of the plane by toilets and bulkheads, the theory being you won't be able to hear the kids who are toward the back of the plane.
In the midst of a cacophony of cars and cabs on the historic cobblestones at Gansevoort Street is a grey metal staircase leading up to a zone of relative quiet amid a grove of birch trees.