The most absolutely unique buildings at the Fair are the Trylon and Perisphere, The Theme Center. The Perisphere is a 200 ft. ball, the largest ever created by mankind. Inside the sphere the visitor views from a revolving platform suspended in mid-air, a dramatization of the World of Tomorrow. The 700-foot, triangular Trylon at the left serves as a beacn for the Fair. Harrison & Fouilhoux are the architects.

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