Unidentified subway tracks.
Shaft No. 4, Steinway Tunnel.
Man inside the southern end of a river tunnel.
Railroad tunnels and bridge, south of Central Avenue.
Right-of-way on portal.
Unidentified tunnel.
9th Street in Brooklyn.
Northern section of land tunnel.
Unidentified street and railroad tracks.
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.
Southbound express tunnel.
Church Street.
60th Street.
Unidentified track tunnel.