7th Avenue and West 21st Street.

Ring #97 Northbound Express tunnel.

Greenwich Street, north to Cedar Street.

Central Avenue bridge.

Unidentified street and railroad tracks.

St. Nicholas Avenue.

Sea Beach Line at 5th Avenue.

State Street.

Sea Beach Line and Long Island Railroad at 5th Avenue, looking west to 4th Avenue.

Unidentified subway tracks.

Railroad tunnels and bridge, south of Central Avenue.

Shaft No. 4, Steinway Tunnel.

Right-of-way on portal.

Man inside the southern end of a river tunnel.

6th Avenue and 34th Street.

60th Street.

9th Street in Brooklyn.

[Lexington Avenue and East 75th Street.]

West 53rd Street.

Lexington Avenue, north to East 62nd Street.