These images of a moving sidewalk of the future ran in an 1890 issue of Scientific American. A moving sidewalk very similar to this was actually built for the 1900 Paris Exposition. You can even watch film of the sidewalk in action, shot by Thomas Edison. The images below can also be found in the excellent book Victorian Inventions by Leonard De Vries.
See also:
Moving Sidewalk (1900)
Moving Sidewalk Mechanics (1900)
Gardens of Glowing Electrical Flowers (1900)
