Revealed back in December 2020, the new Masterplan design for Expo 2025 Osaka will be developed Sou Fujimoto as a huge, ring-shaped structure that serves as the main circulation path. The Japanese architect shared details of his vision in a recent interview with designboom: ‘The roof not only protects people from sunlight and rain but is also enormous, with a diameter of almost 700 meters. We are designing it using a wooden structure, which presents unique challenges due to the scale and materials involved. However, Japan has a wonderful tradition of historical wood construction, and I aim to draw inspiration from it and blend it with new technology in the construction process. This work is not only a wonderful trial for working on such a large scale but also an exciting challenge in terms of innovative construction techniques.’