The Uptown Hudson Tubes are a pair of tunnels that carry PATH trains between Manhattan in New York City, New York, to the east and Jersey City in New Jersey to the west. The tubes originate at a junction of two PATH lines on the New Jersey shore, cross eastward under the Hudson River. On the Manhattan side, the tubes run mostly underneath Christopher Street and Sixth Avenue, making four intermediate stops before terminating at 33rd Street station. Contrary to their name, the tubes do not actually enter Uptown Manhattan, but are so named because they are located to the north of the Downtown Hudson Tubes, which connect Jersey City and the World Trade Center.
Dewitt Clinton Haskin first attempted to construct the Uptown Hudson Tubes in 1873. Work was delayed by five years by a lawsuit, and was further disrupted by an accident in 1880, which killed twenty workers.
Wikipedia https://en.wikipedia.org/wiki/Uptown_Hudson_Tubes
Coordinates 40°43'52.778" N -74°1'16.499" E