[800 Park Avenue.]

[800 Park Avenue.]

[800 Park Avenue.]

[800 Park Avenue.]

[800 Park Avenue.]

[800 Park Avenue.]

[800 Park Avenue at 74th Street.]

[800 Park Avenue.]

[800 Park Avenue.]

[Architectural rendering of 800 Park Avenue.]

[Architectural rendering of 800 Park Avenue.]

[Architectural rendering of 800 Park Avenue.]

800 Park Avenue

Dr. Richard Hoffman Residence, 870 Park Avenue

[Interior of 800 Park Avenue.]

[Park Avenue and 74th Street.]

[Interior of 800 Park Avenue.]

The Union Club, 701 Park Avenue. West room, detail of door.

[East 77th Street and Fifth Avenue. Senator William A. Clark residence. Interior, empty room toward door.]

820 Park Avenue. Residence