low line

NYC Developers Look To Create Underground ‘Lowline’ ParkVisitors from around the world are drawn to New York City's High Line, an elevated park built on defunct railroad tracks transformed into an urban sanctuary of flowers, grasses and trees.
MTA Releases Video Of Proposed Underground Park SitePeter Hine of MTA Real Estate walks viewers through the mothballed Essex Street Trolley Terminal -- the spot that architects hope gets made into the "low line."