Buckminster Fuller's geodesic dome formed the centerpiece of the USA Pavilion during Expo '67, held in what city?

Buckminster Fuller's geodesic dome indeed served as the centerpiece of the USA Pavilion during Expo '67, which took place in Montreal, Canada. Expo '67 was a significant event that celebrated the centennial of Canada and showcased innovations, culture, and technology from around the world. The choice of Montreal as the host city was instrumental in creating a vibrant international atmosphere, and Fuller's dome was emblematic of the forward-thinking architectural concepts being explored at the time. It symbolized modernity and innovation, which perfectly aligned with the themes of the exposition. This dome has since become an iconic landmark of Montreal, making it a fitting answer to the question regarding the location of Expo '67.