[Construction of the New York World's Fair site, with the Trylon and Perisphere in the background.]
[Construction of the Trylon and Perisphere, 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.]
[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 visible in the background.]
[Construction of the Perisphere and Trylon, New York World's Fair site.]
[Construction of the Helicline, Trylon and Perisphere, New York World's Fair site.]
[Ranger at New York World's Fair site during construction, with the frames of the Trylon and Perisphere in the background.]
[Construction of the New York World's Fair site with the frames of the Trylon and Perisphere in the background.]
[New York World's Fair. Pile driver with Perisphere and Trylon in background. Construction view.]
[Construction of the Trylon and Perisphere at the New York World's Fair site.]