Unidentified tunnel.
Pennsylvania Tunnels, Interior Showing Signal Apparatus.
Northern section of land tunnel.
Ring #97 Northbound Express tunnel.
The Weehawken Ferry Story [Railroad tunnel.]
Interior of Pennsylvania Tunnels, New York.
Queensboro Tunnel.
[Train tracks.]
Pennsylvania Tunnels - Two of the Long Island Portals.
[Unidentified building.]
McAdoo Tunnel under North River, New York
Hudson River Tunnel, Connecting New York and New Jersey
Hudson River Tunnel Curve, New York.
Hudson River Tunnel, Connecting New York and New Jersey.
Railroad tunnels and bridge, south of Central Avenue.
Unidentified subway tracks.
[Construction of the Pennsylvania Railroad tunnels under the Hudson.]
Unidentified track tunnel.