Queensboro Tunnel.
East River Tunnel, New York.
Tunnel Under the New York East River
Subway tunnel construction at Lexington Avenue and 97th Street.
Subways and Tunnels, Manhattan Island
The Brooklyn Subway, New York.
[Tunnel construction.]
[McAdoo Tunnel.]
Unidentified tunnel.
Original Exhibits of Rapid Transit Subway Construction Company, Plaintiff [Excavating a tunnel; subway construction.]
[Holland Tunnel.]
[Constructing the McAdoo Tunnel.]
The Holland Tunnel
[Streetcar tunnel.]
Southbound express tunnel.