[Knox Building, Fifth Avenue and 40th Street.]

[24 West 40th St.]

East 40th Street.

Building, Knox, Fifth Ave. & 40th Street.

[Scientific American Building, 24 West 40th St.]

[338 Madison Avenue.]

[338 Madison Avenue.]

East 40th Street and Madison Avenue, southwest corner. Commercial building

[Scientific American Building, 24 West 40th St.]

[304-6-8 Madison Avenue.]

[Knox Building, Fifth Ave. and 40th St., New York.]

East 40th Street and Madison Avenue, northeast corner. Murray Hill Building. Artist rendering

East 40th Street and Madison Avenue, northeast corner. Murray Hill Building. Artist rendering

[Four Twenty Four Madison Avenue.]

[300 Madison Avenue.]

East 40th Street and Madison Avenue. General street view

[Two forty Four Madison Avenue.]

Street Scene Looking South Down Fifth Ave. from 40th Street.

[341 Madison Avenue.]

[Metropolitan Life Building, Madison Avenue & 23rd Street.]