[New York World's Fair site under construction, with the frames of the Trylon and Perisphere in the background.]
[Construction of the New York World's Fair site, with the steel frames of the Trylon and Perisphere in the background.]
[Construction of Electrical Products building with frame of Trylon in background, New York World's Fair site.]
[Construction of the New York World's Fair site, with the frames of the Trylon and Perisphere in the background.]
[Construction of the New York World's Fair site, with the steel frames of the Trylon and Perisphere visible.]
[Construction of the New York World's Fair site, with the Trylon and Perisphere in the background.]
[Construction of the World's Fair site, with the steel frames of the Trylon and Perisphere visible.]
[Site of the New York World's Fair, showing the Trylon and Perisphere under construction.]
[Construction of the New York World's Fair site, with the frame of the Trylon in the background.]
[New York World's Fair site under construction.]
[Construction of the New York World's Fair site, showing the Ford pavilion's spiral driveway and the steel frame of the Trylon in the background.]
[Trylon under construction, New York World's Fair site.]
[Construction of the New York World's Fair site, with the steel frames of the Trylon and Perisphere visible in the background.]