joshua david and robert hammond first met in 1999 at a manhattan community board meeting. on the agenda: what would be the fate of the abandoned elevated runway. while many supported its demolition, david and hammond saw the high line as an important icon of new york history. the two had zero experience in urban plan organize development but joined forces and started a grass-roots movement to rescue it. in 2009, their ten-year dream transformed the forgotten railway into an urban oasis. the "new york times" calls the high lineourney something of a new york fairy tale. its second section opened earlier this year. paul goldberger has called it surely the most important addition to the public realm of new york in this century. david and his new book high lines new york city's park in the sky and tells the story. joining me now, amanda burden, chair of the new york city planning commission. is she was an early champion of the project and saw potential of what the highline could be. diane von furstenberg, she has contributed $2535 million to the high line project as part of the