Osaka won the rights to host the 2025 World Expo, beating out rivals Yekaterinburg in Russia and the Azerbaijan capital of Baku, during voting in Paris on Friday.
Celebrations were held in Paris after the results were announced, and crowds marked the good news early Saturday morning in Osaka.
The vote by the Bureau International des Expositions (BIE) returns the event to the city 55 years after the 1970 Osaka Expo, which drew 64 million visitors and is regarded as one of the most successful expos ever held.