Ring #97 Northbound Express tunnel.
Unidentified street and railroad tracks.
Unidentified subway tracks.
Right-of-way on portal.
Railroad tunnels and bridge, south of Central Avenue.
Shaft No. 4, Steinway Tunnel.
Man inside the southern end of a river tunnel.
9th Street in Brooklyn.
Unidentified tunnel.
Unidentified track tunnel.
Opposite Trinity Cemetery.
Central Avenue bridge.
Sea Beach Line at 5th Avenue.
Sea Beach Line cut supporting building foundation, Fort Hamilton Parkway.
Sea Beach Line and Long Island Railroad at 5th Avenue, looking west to 4th Avenue.
Church Street.
[Lexington Avenue and East 75th Street.]
Northern section of land tunnel.
32 West 28th Street.