the High Line on the lower west side.
This is essentially a recycled elevated railroad that snakes through that part of Manhattan and was disused for years. It is now, however, a beautiful nature reserve populated by kids, families and just plain old folks like me as they walk through plants and grass verges as they look down on the busy streets below.
Back in our part of the world we live under the crumbling monstrosity of the Westway, which our Council is rightly trying to replace with an underpass instead. I see no reason why the Westway couldnt be turned into something even better.