7. The Perisphere Contained the Longest Escalator in the World

Image via Wikimedia Commons from Library of Congress

To enter the Perisphere and get a look at the exhibit inside visitors had to first enter the Trylon and take a ride up a custom made escalator. The escalator into the Perisphere was the longest electric escalator in the world at that time. Once visitors were done inside, they descended via The Helicline. The Helicline was a 950-foot-long, 18-foot-wide curved ramp with a mirrored underside, ​that led visitors back down to ground level. Since it was one of the highest open-air areas at the fair, the Helicline was a popular spot to take in views of the fairgrounds.