With the popularity of YouTube, it's amazing what's available about world's fairs in video. Folks are putting up their old home movies of world's fair visits as well as news accounts of Expo 2008 progress. I remember years ago waiting in the mail for brochures to get even a glimpse of what Expo 88 or Expo 92 might be like. Now, I can see footage of construction progress in Zaragoza!
Among the newer videos is some historical footage like this one.
It's great to glimpse into a world's fair from 107 years ago. I'd seen drawings of Paris 1900's moving sidewalks before. they had multiple parallel conveyors running at different speeds, so you'd jump from slow to fast and vice-versa grabbing poles along the way. However, I'd never seen video of it in action. Not only was it quite a marvel at the time, but I found myself wondering this: If a multiple-speed moving sidewalk were to be exhibited now, it would still be a marvel... and (at least in the United States) a lawsuit waiting to happen.
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