Many people seem to think that Walt Disney's idea for EPCOT was his own creation. Yet, in reality, it was nothing more than a rather cheap copy of Futurama which was devised by General Motors for the 1939 Worlds Fair.
http://www.pmphoto.to/WorldsFairTour/Zone-6/097.htm
http://www.davidszondy.com/future/city/futurama1939.htm
http://www.pmphoto.to/WorldsFairTour/Zone-6/097.htm
http://www.davidszondy.com/future/city/futurama1939.htm