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