'How heavy is a city?' is the 7th edition of the Lisbon Triennale. This question instigates a three-year research project, carried out by an ever-growing coalition, into the complex set of transformations of the city, revealing a planetary new figure in the making.

From October 02 to December 08 2025, the Lisbon Triennale 2025 includes three exhibitions — Fluxes, Spectres and Lighter —, a three-day conference series, a selection of Independent Projects, and a publication. It acts as a convener, engaging a broad team of experts from science to philosophy or the arts.

This year's edition is curated by Territorial Agency (Ann-Sofi Rönnskog and John Palmesino).

About

The Lisbon Architecture Triennale, founded in 2007, is an open platform for the research and promotion of architectural thinking and practice. In addition to the international forum organised every three years, the association produces regular public events, such as Open House Lisboa, talk series, conferences and exhibitions.