Overview
- Organizers lifted the three-month entry ban on the Civilization Forest exhibit at Osaka-Kansai Expo on July 21 after a safety overhaul.
- The installation features more than 130 subfossil oak trunks estimated to be 6,500 years old and arranged to recreate an ancient woodland.
- Czech firm Subfossil Oak strengthened each tree’s support structures and verified their seismic stability through engineering tests.
- The exhibit’s infrastructure now includes dedicated visitor pathways, on-site monitors, monuments, explanatory displays, stamp stations.
- Access was restricted from April 28 to July 19 after social media posts highlighted potential falling-tree hazards.