Another post from Paleofuture - Postcards Show the Year 2000 (circa 1900)

postcards were produced by Hildebrands (a leading German chocolate company of the time).

Walking on water. A moving sidewalk. House movers, by train. Televised broadcasting. Individual flying machines. Controlling the weather. Travel on land and sea. Underwater tourism. Cities under glass, or something clear. Family air ships, when the flying machine isn't enough. Comfortable travel to exotic, extreme locations. See through walls with x-ray.

My Grandmother had a dream about moving sidewalks, but with cars travelling on them. Maybe in 2050?