Program: Need To Know
Episode: The Thin Green Line
Alison Stewart tours The High Line, a year-old elevated park in Manhattan. Built atop an old train trestle, it has already drawn millions of visitors. But it's more than a nice place to relax and take in the view -- it's an economic engine.
Premiere Date: 09/17/2010
Episode Expires: Wed 16 Sep 2015
TV Rating: NR
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