Yes, it’s me going off topic again, but I am constantly impressed with the quality of the movies of the best World’s Exposition ever, the one in Montreal in 1967 ( Expo 67 ) ( to celebrate Canada’s Centennial). I don’t think there has been any world’s fair as popular as Expo 67?
This NFB short is about the Canadian pavilion which was an inverted pyramid. I was only 6 when Expo 67 was on in Montreal, but I do remember walking up the inverted pyramid and looking out the top (and clinging tightly to my mother for fear of being blown off the top).
Hard to believe this is 50 years ago.