Walkway Over the Hudson

May 11, 2010, 1pm PDT
It's 1.28 miles long, spans 212 ft. above the Hudson River only 80 miles north of Manhattan, and a state park, no less, officially titled "Walkway Over the Hudson". Initially a railroad bridge that opened in 1888, it closed after a fire in 1974.
The New York Times - N.Y. / Region