"Thanks to a recent decision by a federal agency giving the city an important green light to create just such a park along the High Line, the long-unused elevated railroad bed that snakes through the lower West Side, New Yorkers may well find out. People will not be able to stroll along that viaduct until 2007, when the first segment of the refurbished High Line is scheduled to open. For a quicker taste of what the future may hold, here is the story of another such midair park - the only other one, in fact. It is called the Promenade Plantée, and it is in Paris."
Thanks to Brenda Meyer