General Motors' 35,738-square-foot "Highways and Horizons" pavilion contained the Fair's most popular exhibit entitled "Futurama." Here, in 322 moving chair-cars, each equipped with its own sound system for a "personal tour," visitors witnessed the largest and most realistic scale model ever constructed. The 1,586 feet of chairs rose and fell, sometimes to a height of 23 feet, while the visitor viewed the future world of the 1960s.
General Motors - New Horizons
In 1939 GM produced a film titled "To New Horizons" which takes you through a tour of Futurerama.
Here the a link to "new Horizons" on archive.com so you can view the film. The run time is 22:59. You can also download the film from the Archive site in a variety of resolutions ... enjoy.