[New York World's Fair. Construction view, looking up at steel frame.]
New York Worlds Fair. Perisphere. View looking up from inside steel frame
New York Worlds Fair. Perisphere, looking up from inside steel frame
[New York World's Fair. Aviation Building, steel frame. Construction view.]
[Construction of the New York World's Fair site, showing the steel frame of the Perisphere.]
New York Worlds Fair. Perisphere and Trylon steel frame
[Construction of the Perisphere, New York World's Fair site.]
New York Worlds Fair. View looking down on Perisphere steel frame from Trylon
[Close-up of the Perisphere under construction, New York World's Fair site.]
[New York World's Fair site during construction, showing the steel frames of the Trylon and Perisphere.]
[Construction of the New York World's Fair site, with the steel frame of the Perisphere in the foreground.]
[Construction of the Trylon and Perisphere at the New York World's Fair site.]