Feature

null² to null⁴

Expo 2025’s signature pavilion null² continues as two projects: the permanent theatre null²ⁿ in Yokohama Landmark Tower and the work null⁴ at the GREEN×EXPO 2027 venue. Announcements, tickets, access, Yoichi Ochiai’s own words and his permanent exhibit at Miraikan, collected here.

Filter

Browse by mascot

Tap a name to show only the announcements and articles that mascot appears in.

The Grand Ring's timber structure lit up at night, illuminated wooden beams stretching into the distance

Article Exhibitors and countries

One Year After Closing: Where Expo 2025 Osaka's Legacy Went, Piece by Piece

A year after Expo 2025 Osaka closed, here is where its legacy went: to Yokohama's GREEN×EXPO 2027, staying in Yumeshima, or handed on elsewhere.

2026.09.13

Photo: 掬茶 (CC BY-SA 4.0, Wikimedia Commons)

The front of the null² pavilion at Expo 2025. Its mirrored outer wall reflects the sky and nearby buildings, and part of the wall is rippling

Article Exhibitors and countries

Where Yoichi Ochiai's null² goes next: null²ⁿ (Null Null Nexus) in Yokohama and null⁴ (Tetra Null) at the Expo

Expo 2025's null² continues as two projects: the permanent theatre null²ⁿ, opening 14 October 2026 in Yokohama Landmark Plaza, and null⁴, rotating mirrors at the GREEN×EXPO 2027 venue. What carries over, in the announcements and Ochiai's words.

2026.09.13

©Yoichi Ochiai (from the Sustainable Pavilion 2025 Inc. press release of 26 August 2026, via PR TIMES)

Rendering of the null²ⁿ entrance: a round mirrored window and a video wall facing a shopping-mall corridor, with people standing in front

Article Tickets and planning

null²ⁿ (Null Null Nexus) visitor guide: access, tickets and rules. Landmark Plaza 5F, Yokohama, opens 14 October 2026

Yoichi Ochiai's permanent theatre null²ⁿ opens 14 October 2026 in Yokohama Landmark Plaza, 3 minutes from Minatomirai Station. Timed tickets from 3,900 yen, no refunds, about 60 minutes. Prices, booking rules and how to pair it with the Expo.

2026.09.13

©Sustainable Pavilion (from the Sustainable Pavilion 2025 Inc. press release of 7 April 2026, via PR TIMES)

Rendering of the GREEN×EXPO 2027 main gate, built from timber and steel and reusing cladding from Expo 2025 pavilions

Article Exhibitors and countries

For Expo 2025 Visitors: What Carries Over to the Yokohama Expo

What carries over from Expo 2025 to GREEN×EXPO 2027: Grand Ring timber in KAJIMA TREE, a flowerbed and the wooden RING PASS, two rebuilt pavilions, the Italy Pavilion, null² and character collaborations.

2026.09.11

TSP Taiyo press release, 8 June 2026 (via PR TIMES)

Bird's-eye rendering of the GREEN×EXPO 2027 site: exhibition buildings and flower beds line a central tree-lined avenue, with a tall tower beyond

Article Exhibitors and countries

GREEN×EXPO 2027 pavilions at a glance: from the 12 Village exhibitors to the Kanagawa Pavilion

The 21 pavilions and shops at GREEN×EXPO 2027 as of September 2026: 12 Village exhibitors, 4 theme shops, 3 official facilities and 2 local-government pavilions.

2026.09.11