Milan Expo 2015: Japan's no-nail wooden lattice pavilion drew nine-hour queues

Every nation had to answer 'Feeding the Planet, Energy for Life' at Milan Expo 2015. Japan answered with 'Harmonious Diversity' — the nature-view at the root of washoku, newly listed by UNESCO — and set out to make the pavilion an experience, not a display.

A no-nail 3D wooden lattice wrapping the hall, and teamLab screens at rice-ear height visitors wade through — the audience becomes part of the paddy.

Atsushi Kitagawara's lattice of domestic larch glulam uses traditional tsugite/shiguchi joinery with modern structural analysis; inside, teamLab's 'HARMONY' and Rhizomatiques' 'FUTURE RESTAURANT' lead to a real washoku restaurant zone.

About 2.28M visitors — over a tenth of the whole Expo — with queues up to nine hours, and the BIE's top exhibition-design award: gold in Pavilion Design Class A.

At Milan Expo 2015 — theme 'Feeding the Planet, Energy for Life' — Japan answered with 'Harmonious Diversity'. Architect Atsushi Kitagawara wrapped the hall in a huge 3D wooden lattice built from domestic larch glulam: traditional tsugite and shiguchi joinery refined with modern structural analysis, standing as a giant polyhedral structure with minimal reliance on bolts, hardware or glue. Sunlight filtered through like shoji screens, and the lattice doubled as a shading, ventilating facade.

Inside, the exhibition overturned the panels-and-models format of expo pavilions. In teamLab's 'HARMONY', visitors waded between waist-high screens shaped like rice ears and lotus leaves; images reacted to their movement, water flowed underfoot, fish swam, and Japan's rural seasons filled the room. Rhizomatiques' 'FUTURE RESTAURANT' taught table culture, chopsticks and plating aesthetics at interactive media tables.

The route ended in taste: a washoku restaurant zone timed to the cuisine's fresh UNESCO intangible-heritage listing, serving everything from old-restaurant kaiseki to conveyor sushi, curry and noodles — a five-sense story that finished on the tongue. Producers included Mahoro Uchida of the National Museum of Emerging Science and Innovation, creative director Shigeki Hattori and Hitoshi Miyata.

The pavilion drew about 2.28 million visitors — over a tenth of the entire Expo's attendance — with queues reaching some nine hours late in the run, and took the Bureau International des Expositions' top exhibition-design honor, the gold in Pavilion Design Class A. The article, written after the Osaka–Kansai Expo, still holds the pavilion up as the reference for national branding and immersive exhibition design.

Traditional joinery plus modern structural analysis let a huge lattice stand with almost no metal — craft presented as a prototype of future building, not nostalgia.

teamLab's waist-high screens make visitors wade through a digital rice field, so the exhibit is walked and touched, not watched.

The show ends in taste: a real washoku zone completes a story told through all five senses.

The answer to 'Feeding the Planet' was an attitude — gratitude, seasonality, harmony — which audiences worldwide could read without a shared language.

Nation branding lands when visitors participate with their bodies and leave through their senses — not when the exhibits assert excellence.

Late in the run the queues became a daily news story in Italy, and the pavilion entered expo history as a legend of its kind. The article credits it as a cultural detonator for Japan's inbound tourism boom and washoku exports, and a decade later — after the Osaka–Kansai Expo — it is still cited in both academic and creative circles as the standard for experience-led national pavilions.