On Saturday, September 19 and Sunday, September 20, 2026, the Heritage Days — aka the cultural event you absolutely mustn’t miss this rentrée — return with a lineup of genuinely (very) impressive tours and activities in Paris and the Île-de-France region. So, if you lean toward ministries, churches, industrial heritage, outdoor strolls... there’s something for every taste and for the whole family! During this exceptional weekend, also seize the chance to discover venues that open but once a year during these Journées du Patrimoine: such is the case for some major educational institutions, for instance, which normally welcome only their students.
So, off to Lycée Jacques Decour in the 9e arrondissement to uncover the heritage sites tucked inside the building. Renowned for its classes préparatoires aux grandes écoles, the lycée Jacques Decour has welcomed esteemed mentors, such as the poet Stéphane Mallarmé or the philosopher Henri Bergson, and has seen alumni who are equally renowned: painters Édouard Manet and Gustave Moreau, singer Claude Nougaro, director François Truffaut... On the occasion of these Journées du Patrimoine 2026, don’t miss visiting this famous Parisian lycée!
Guided tour of Jacques-Decour High School
Guided tour of Lycée Jacques-Decour
As major renovations are underway in the building on Avenue Trudaine, our association Save Jacques-Decour’s Heritage, in collaboration with the administration, offers a guided tour of the site’s notable heritage: the parloirs, the museum, the Cour d’Honneur, and the former teachers’ library.
Participation conditions: A range of walks — booking essential | Free - Patrimoine.decourasso@gmail.com
Hours: Saturday, September 19, 2026 — 9:00 AM–12:00 PM
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Location
Lycée Jacques Decour
12 Avenue Trudaine
75009 Paris 9
Route planner
Accessibility info
