East 51st Street and Park Avenue. Ambassador Hotel. Upper stories

465 Park Avenue. Ritz Tower

East 57th Street and Park Avenue. The Mayfair Apartments

East 57th Street and Park Avenue. Mayfair Apartment House

57th Street and Park Avenue. Mayfair Apartment House.

East 51st Street and Park Avenue. Ambassador Hotel

399 Park Avenue. Apartment building

[277 Park Avenue.]

Park Avenue and 57th Street, S.W. corner. Hayden Co., general view.

[277 Park Avenue.]

[277 Park Avenue.]

465 Park Avenue. Ritz Tower

[277 Park Avenue.]

[277 Park Avenue.]

Park Avenue. Residence, watercolor rendering.

[375 Park Avenue. Montana Apartments.]

[277 Park Avenue.]

East 57th Street and Park Avenue. Brisbane Building. Artist rendering

821 Seventh Avenue. One-story stores, auto parking on roof

250 Park Avenue. Postum Building