The grand roof at the venue for the 2025 World Exposition in Osaka, western Japan, was recognised as the world's largest wooden architectural structure by Guinness World Records.

 

The Grand Ring, the symbol of the six-month-long global event starting April 13, has a roof area measuring over 61,000 square meters, according to the global authority on world records, reported Kyodo News.

 

Sosuke Fujimoto, the roof's architect, said at the award ceremony he hoped the Expo symbol would send out a message about the importance of forming bonds in a world that has been increasingly divided lately. 

 

The architectural symbol was completed on February 27 to represent the expo philosophy of "Unity in Diversity," said the report.

 

The 20-m-high structure with a circumference of 2km is made of approximately 27,000 cu m of timber, including Japanese cypress and cedar, as well as European red pines, it added.