Trylon and Perisphere
The Trylon and Perisphere were two modernistic structures, together known as the "Theme Center," at the center of the New York World's Fair of 1939-1940. Connected to the 610-foot (190 m) spire-shaped Trylon by what was at the time the world's longest escalator, the Perisphere was a tremendous sphere, 180 feet in diameter. The sphere housed a diorama called "Democracity" which, in keeping with the fair's theme "The World of Tomorrow", depicted a utopian city-of-the-future. Democracity was viewed from above on a moving sidewalk, while a multi-image slide presentation was projected on the interior surface of the sphere. After exiting the Perisphere, visitors descended to ground level on the third element of the Theme Center, the Helicline, a 950-foot-long (290 m) spiral ramp that partially encircled the Perisphere.
The Trylon and Perisphere became the central symbol of the 1939 World's Fair, its image reproduced by the million on a wide range of promotional materials and serving as the fairground's focal point. The United States issued a postage stamp in 1939 depicting the Trylon and Perisphere (pictured). Neither structure survives; however, the Unisphere, the symbol of the 1964-65 New York World's Fair, is now located where the Perisphere once stood.
The Theme Center was designed by architects Wallace Harrison and J. Andre Fouilhoux, with the interior exhibit by Henry Dreyfuss. The structures were built in Flushing Meadows Park in Queens, New York and were intended as temporary with steel framing and plaster board facades. Both buildings were subsequently razed and scrapped after the closing of the fair, their materials to be used in World War II armaments.
The name "Perisphere" was coined using the Greek prefix peri-, meaning "all around", "about", or "enclosing". The name "Trylon" was coined from the phrase "triangular pylon".
In popular culture 
Composer (and Rhapsody in Blue orchestrator) Ferde Grofe was commissioned by the World's Fair to compose a piece of symphonic music dedicated to the sculptured edifices.
In the 1940 Disney feature Pinocchio, the exterior of the pool hall on Pleasure Island is a ball and cue modeled on the Trylon and Perisphere.
The Trylon Theatre, located on Queens Boulevard in Forest Hills, Queens, New York, operated from December 1939 through December 1999. The theatre's decor included several references to the 1939-40 World's Fair.
Singer/songwriter Aimee Mann created a song called "Fifty Years After the Fair" for her 1993 album Whatever, the subject of which is the 1939 World's Fair. The song references the Trylon and Perisphere while suggesting how little of the Fair's bright vision of the future had actually been realized in the "decades ahead" now passed.
A photo of visitors on the walkway between the two structures is used as the cover art of the 2000 album Deltron 3030.
In the 2004 movie Sky Captain and the World of Tomorrow, whose title references the fair, two structures which resemble the Trylon and Perisphere are briefly seen in the Himalayas.
See also 
- Harrison, Helen. "Stuart Davis' 'World of Tomorrow.' American Art, Vol. 9, No. 3. (Autumn, 1995), pp. 96-100.
- The Odyssey of Flight 33
Further reading 
- Cohen, Barbara. Trylon and Perisphere. Harry N. Abrams, Inc. Publishers, New York, 1989.
- Gelernter, David. 1939: The Lost World of the Fair. The Free Press, New York, 1995.
- Newhouse, Victoria. Wallace K. Harrision, Architect. Rezzoli International Publications Inc. New York, 1989.
- "New York World's Fair, 1939." Architectural Forum, June 1939. vol. 70, pp. 393–462.
- "The World's Fair will put on a 6-minute show inside its perisphere." Life, August 1938. pp. 55–58.
- "Aerodynamics of the Perisphere and Trylon at World's Fair." American Society of Civil Engineers, Vol. 65 Issue 5, 1938. pp. 887–906.