The Triennale centrepiece.

In the very core of an architecture triennale, is the main exhibition, which in 2026 occupies the inside (and outside) of the Sofienberg Church. The title question "What if Nature Comes First?" will be explored in the exhibition through four scales – materials, structures, territories, systems – a division through which the Triennale programme is also organised.

The contributors in this year's exhibition are: Arkitekt Martin Hopland & Studio Widerøe (NO), Arkitekter Uten Grenser (NO), Ask Holmen (NO), Bettina Barlinn (NO), Built arkitekter (NO), Carmody Groarke (UK), Earth Collective (NO), Eladio Ramm (NO), Galena Sardamova & Paris Bezanis (DE), Gitte Sætre (NO), Greta Gleisner Birkeland & Sigrid Legernes Teigen (NO), Grinham Research Group (US), Helge Skodvin (NO), HouseEurope (EU), Jespersen Nødtvedt (DK), Laboratory for Urban Boundaries (NO/FR), Manuel Bouzas & Roi Salgueiro (ES), Max Koch (DE), Nitin Bathla (CH), Pihlmann Architects (DK), Regenerative Ideas for Tomorrow (NO/SE), SLA (NO), Studio Coquille (DK), studio dreiSt (DE), Studio Oslo Landskapsarkitekter (NO), Tom Nielsen (DK), Transborder Studio (NO), Vill Arkitektur (NO), with contributions from Arkitektur- og designhøgskolen i Oslo, Norske arkitekters landsforbund, Norske landskapsarkitekters forening and DOGA.

The exhibition is open from 8AM–7PM every day, and from 10AM–5PM in the weekends.