I remember going to the GE Carousel of Progress at the '64-65 NY World's Fair and then later when they moved it to Disneyland I saw it in the early '70s when I came out to L.A. I still have the 45 rpm record of the theme from the Fair.
One more memory… in the World's Fair Carousel, the audience rotated around the stage from scene to scene. At Disneyland, the Carousel's stage moves and the audience is stationary. It was way cooler at the Fair.