An armchair spectator conveyer-guide

Visitors to the General Motors “Futurama” at the 1939 New York World's Fair, an extensive scale model purporting to depict the America of tomorrow, were transported through the exhibit on a specially designed and constructed conveyer consisting of a continuous train of moving chairs almost one-third of a mile long. Loudspeakers provided each individual spectator with a running account of the changing scene throughout the tour.