Mid-Sky Meadow Chic

What will those quirky Manhattanites think of next? This couple (he's a developer, she's a writer) was visiting some country folk a few years ago. The country folk had a porch overlooking a lake. The Manhattanites decided they love porches--so they built a porch--and a meadow--on the roof of their building overlooking the Empire State Building. Six stories up.

Looks serene in the pic, but I wonder whether they can actually escape the noise of the streets below, or whether they just have to imagine that they can actually hear the meadow birds chirping...