I think what amazed me most about the Seattle Space needle was that it was built for the 1962 Seattle World's Fair. I just don't think of anything during that period as being so high tech.
I guess what was happening during the 'space race' as proclaimed by JFK.
The Space Needle has a very interesting history that started with the inspiration by the President of a hotel chain that started with a drawing on a placemat in a coffee house.