Experimental City of the Future (1967)

The January 22, 1967 Lowell Sun (Lowell, MA) ran this illustration of an experimental city of the future.

Typical Experimental City may look like this. At left is computerized communications complex; at center lies atomic power plant, while at right is greenhouse for vegetables and greenery.

See also:
Transportation in 2000 A.D. (1966)
Personal Helicopter (1943)
Commuter Helicopter (1947)

Walt Disney and City Planning

"Imagineers said that when they were planning Tomorrowland, Walt would carry around books on city planning and mutter about traffic, noise, and neon signs, and he kept three volumes in his office to which he frequently referred: Garden Cities of Tomorrow by Sir Ebenezer Howard (originally published in 1902 and reissued in 1965), which promoted a vision of a more pastoral urban life; and The Heart of Our Cities and Out of a Fair, a City, both by an architect and mall designer name Victor Gruen, who urged the reconceptualization of the city as more ordered, rational and humane."

(excerpted from p. 608 in Walt Disney: Triumph of the American Imagination by Neal Gabler)

Also, it looks like a new 2007 edition of Garden Cities of Tomorrow just came out.