[Unidentified building.]

[Construction of unidentified building.]

[Unidentified neoclassical building.]

[Unidentified building.]

Changing New York [Building under construction and cityscape.]

[Construction of an unidentified residence.]

[Construction of an unidentified residence.]

[New York World's Fair. Aerial view of fairgrounds over Amusement Zone. Construction view.]

[Construction of an apartment building.]

[Unidentified building under construction.]

[Aerial view of an unidentifed lake.]

[Aerial view of an unidentifed lake.]

Rockefeller Center. RCA Building. Construction view, upper stories

[Construction of the New York World's Fair site.]

[Construction of Rockefeller Center.]

[Construction of Rockefeller Center.]

[Construction of Rockefeller Center.]

[Construction of Rockefeller Center.]

[Construction at the New York World's Fair site.]

[Aerial view of construction in Midtown.]