Expo 2025 opened in Osaka yesterday. It is the third time that Japan has held a world exposition. The first expo was in Osaka in 1970. It was very successful and had more visitors than any other world expo until the Shanghai World Expo in 2010. I remember the second expo in Aichi Prefecture in 2005 because I was already living here. Each expo has something new to show. The 1970 Osaka Expo showed the first IMAX movie and introduced conveyor-belt sushi. The 2005 Aichi Expo had robots and a frozen mammoth from Russia. What are the attractions at Expo 2025? They have the largest wooden building in the world, and you can see flying cars.  (116 words)

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