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.
9th Street in Brooklyn.
Unidentified street and railroad tracks.
Unidentified tunnel.
Central Avenue bridge.
Opposite Trinity Cemetery.
Northern section of land tunnel.
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.
Southbound express tunnel.
60th Street.
Liberty Street.