For Parisians and the Île-de-France residents, public transport is part of daily life. The metro, bus, tram—so familiar that you might think you know them by heart. And yet the RATP still has plenty of secrets to reveal. The company invites you to take part in special tours along the various lines of its network, on September 19 and 20, 2026, to mark the 43rd edition of the Heritage Days.
If you've never taken part in this great cultural and popular celebration, get ready to be seduced. Launched for the first time in France in 1984, the Journées du Patrimoine (Heritage Days) return every September to open the doors of thousands of sites all over France. From the country's most famous monuments to hidden curiosities in the depths of a village, visitors enjoy a weekend of discovery.
If you're in one of theÎle-de-France departments during these Heritage Days, don't miss the RATP tours. Please note that many of these tours are only available with registration.
The Paris program:
Heritage Days 2026 in Paris: discovering the secrets and hidden places of the RATP
RATP participates in the new edition of Heritage Days with a voyage across the entire network, inviting you to discover the metro in a playful way. Activities, exclusive experiences, tours... See you at four corners of Paris on September 19 and 20, 2026! [Read more]
Boulogne-Billancourt - Train maintenance workshop
A Tour of the Train Maintenance Workshop
Come and discover an RATP rolling stock maintenance workshop and the expertise that keeps the network reliable every day.
Online registration at European Heritage Days: see you in September 2026 | RATP
Participation requirements: Free | Booking required - https://www.ratp.fr/decouvrir/patrimoine/journees-europeennes-du-patrimoine
Hours: Saturday, 19 September 2026 — 10:00–17:00
Domont - Bus Operations Center
Open House Days - Domont Bus Operations Centre
On the occasion of European Heritage Days and Mobility Week, from September 16 to 22, 2026, Île-de-France Mobilités invites you to a guided tour of the Bus Operations Center in your region to discover the behind-the-scenes world of transport, including a visit to the bus depot, an immersion into how the transport system works, insight into the roles within the industry, and many other enriching activities!
Meet our teams at the Domont Bus Operations Center on Saturday, September 19, from 2:00 p.m. to 4:00 p.m. or from 4:00 p.m. to 6:00 p.m.
Participation requirements: Registration is mandatory for all participants. Open to adults or to minors over 16 with parental consent. Children under 16 must be accompanied by an adult. - Free | Booking required - https://www.iledefrance-mobilites.fr/actualites/locales/detail/montmorency-ouvre-ses-portes-a-loccasion-des-journees-du-patrimoine-2026-septembre
Schedule: Saturday, September 19, 2026 — 2:00 PM–4:00 PM, 4:00 PM–6:00 PM
Les Pavillons-sous-Bois - Bus Operations Centre
Open House Days - Pavillons-sous-Bois Bus Operations Centre
On the occasion of European Heritage Days and Mobility Week, from September 16 to 22, 2026, Île-de-France Mobilités invites you to a guided tour of the Bus Operations Center in your area, offering a behind-the-scenes look at the world of transport, a visit to the bus depot, an inside view of how transport works, an overview of the roles involved, and many other enriching activities!
Meet our teams at the Pavillons-sous-Bois Bus Operations Center on Saturday, September 19, from 10:00 to 12:00.
Participation requirements: Registration is mandatory for all participants. Enrollment is open to adults or to minors over 16 with parental consent. Children under 16 must be accompanied by an adult. - Free | Booking required - https://www.iledefrance-mobilites.fr/actualites/locales/detail/vos-centres-operationnels-bus-de-flandre-et-des-pavillons-sous-bois-ouvrent-leurs-portes-a-loccasion-des-journees-europeennes-du-patrimoine
Schedule: Saturday, September 19, 2026 — 10:00 AM to 12:00 PM
Lieusaint - Bus Operations Center
Open House Days - Lieusaint Bus Operations Center
On the occasion of the European Heritage Days and Mobility Week, September 16–22, 2026, Île-de-France Mobilités invites you to a guided tour of your region’s Bus Operations Center to get a behind-the-scenes look at public transport, including a visit to the bus depot, an immersion in the workings of the sector, an introduction to the roles involved, and many other enriching activities!
Meet our teams at the Lieusaint Bus Operations Center:
* Wednesday, September 16, from 10:00 to 12:00 or 14:30 to 16:30
* Saturday, September 19, from 10:00 to 12:00
Conditions of participation : Registration is mandatory for all participants. Registration is open to adults or minors over 16 with parental authorization. Children under 16 must be accompanied by an adult. - Free | Booking required - https://www.iledefrance-mobilites.fr/actualites/locales/detail/portesouvertes2026coblieusaint
Schedule: Saturday, September 19, 2026 — 10:00–12:00
Malakoff - Bus Station
Visit to the Malakoff Bus Depot
Visit the bus maintenance centre and discover its history: 150 years of the depot and how it has evolved over time. You’ll also get to explore an electric depot and the kids’ activity stand.
For ages 10 and up.
Online registration at European Heritage Days: see you in September 2026 | RATP
Participation requirements: Free | Booking required - https://www.ratp.fr/decouvrir/patrimoine/journees-europeennes-du-patrimoine
Hours: Saturday, September 19, 2026 — 10:00–17:00 | Sunday, September 20, 2026 — 10:00–17:00
A ride aboard a vintage SC10 bus
Take a ride aboard an 1980s SC10 bus departing from the RATP Malakoff Bus Center (Hauts-de-Seine).
Note: this is a ride only, not a tour of the RATP Bus Center. (Anyone already registered with RATP for the Center tour automatically gets the ride, with no separate Sauvabus registration needed.).
Participation requirements: Limited to 15 participants per time slot — Free | Reservations required — http://www.sauvabus.com, https://www.billetweb.fr/sauvabus-jep2026
Schedule: Sunday, September 20, 2026 — 11:00–11:30, 12:00–12:30, 14:00–14:30, 15:00–15:30, 16:00–16:30, 16:45–17:15
Massy - Guided tour of the RER B line
RER B Guided Tours
Come explore the industrial and architectural heritage of the RER Line B.
For ages 12 and up
Online registration at Journées européennes du patrimoine : rendez-vous en septembre 2026 | RATP
How to participate: Free of charge | Reservations required - https://www.ratp.fr/decouvrir/patrimoine/journees-europeennes-du-patrimoine
Hours: Saturday, September 19, 2026 - 9:00 AM to 5:00 PM | Sunday, September 20, 2026 - 9:00 AM to 5:00 PM
Montreuil - RATP Signage Workshop
Tour of the RATP Signage Workshop
Visit the signage workshop, where directional panels, station names, and iconic landmarks are designed and maintained to guide travelers daily in metro stations and RER hubs.
Online inscriptions on Journées européennes du patrimoine : rendez-vous en septembre 2026 | RATP
Participation conditions: Free | Reservation required - https://www.ratp.fr/decouvrir/patrimoine/journees-europeennes-du-patrimoine
Hours: Saturday, September 19, 2026 - 08:15 ⤏ 14:45 | Sunday, September 20, 2026 - 08:15 ⤏ 14:45
Noisiel - Maintenance Training Center
Visit to the training center for the maintenance of space equipment and systems
Step inside, at the heart of our training center, and see the real equipment our officers train with before they head out each day: escalators, toll booths, station access turnstiles... A concrete, eye-opening immersion into how the installations that keep travelers’ daily lives running are maintained.
Online registration at Journées européennes du patrimoine : rendez-vous en septembre 2026 | RATP
Participation conditions: Free of charge | Booking required - https://www.ratp.fr/decouvrir/patrimoine/journees-europeennes-du-patrimoine
Hours: Saturday, September 19, 2026 — 9:00 AM to 4:00 PM
Saint-Germain-en-Laye — RATP Archives
Tour of the RATP archives
Come along on a guided tour of the RATP archives, where a wealth of valuable documents gathers—testimonies to the history of transport in Île-de-France, including maps, metro tickets, posters, photos, and more...
Online registrations on Journées européennes du patrimoine : rendez-vous en septembre 2026 | RATP
Participation requirements: Free of charge | Booking required - https://www.ratp.fr/decouvrir/patrimoine/journees-europeennes-du-patrimoine
Hours: Saturday, September 19, 2026 — 10:00 ⤏ 16:00 | Sunday, September 20, 2026 — 10:00 ⤏ 16:00
Villepinte — Villepinte Bus Operations Centre
Open House Days - Villepinte Bus Operations Center
In celebration of European Heritage Days and Mobility Week, from September 16 to 22, 2026, Île-de-France Mobilités invites you to a guided tour of your territory’s Bus Operations Center. Discover the inner workings of the transport world with a peek at the bus depot, a look behind the scenes of transport, an introduction to the professions involved, and a range of other enriching activities!
Meet our teams at the Villepinte Bus Operations Center on Sunday, September 20, from 10:00 a.m. to 12:00 p.m.
Participation requirements: Registration is mandatory for all participants. Adults or minors over 16 may sign up with parental consent. Children under 16 must be accompanied by an adult. - Free | Booking required - https://www.iledefrance-mobilites.fr/actualites/locales/detail/votre-centre-operationnel-bus-de-villepinte-ouvre-ses-portes-a-loccasion-des-journees-du-patrimoine-2026
Schedule: Sunday, September 20, 2026 — 10:00 AM to 12:00 PM
Are you passionate about the world of rails and trains? Here are a few ideas for outings during this exceptional weekend.
Big or small, trains and stations captivate a wide audience. If that describes you, rejoice: many railway spaces will be open for visits this weekend of September 19–20, 2026, for the 43rd Heritage Days. [Read more]
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free
Heritage Days 2026 in Paris: discovering the secrets and hidden places of the RATP
Heritage Days 2026: Stations and trains to discover for rail enthusiasts
