[Construction at the New York World's Fair site, showing Perisphere, Helicline and Trylon.]
[Construction at the New York World's Fair site, showing Trylon and Perisphere.]
[Construction of the Trylon, Perisphere and Helicline at the New York World's Fair site.]
[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 Trylon and Perisphere in the background.]
[Trylon and Perisphere at the New York World's Fair.]
[Construction of the Trylon and Perisphere, New York World's Fair site.]
[Construction of the Trylon and Perisphere at the New York World's Fair site.]
[Perisphere and Trylon at the New York World's Fair.]
[Site of the New York World's Fair, showing the frames of the Trylon and Perisphere.]
[Construction of the Helicline, 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.]
[Construction of the New York World's Fair site, with the steel frames of the Trylon and Perisphere visible.]