Heritage Days 2026 in Paris: the hidden gems you simply must visit

Every third weekend in September, the capital throws open the doors to its most beautiful hidden treasures!

National palaces, imposing government ministries, architectural masterpieces or discreet embassies: the European Heritage Days offer a unique opportunity to take a peek behind the scenes of power, history and culture.

Here is our selection of special openings and venues that are usually closed to the public – don’t miss them on Saturday 19 and Sunday 20 September 2026.

The palaces of the Republic and centres of power

Photo : Amandine Goetz

• The Élysée Palace (8th arrondissement): The must-see attraction as the new season begins

It’s the most sought-after attraction of the weekend. Walk through the Cour d’Honneur, admire the President’s Office and the Salon Doré, and take a stroll through the vast gardens. Please note that online booking is compulsory and places sell out in a matter of minutes.

• The National Assembly & the Hôtel de Lassay (7th arrondissement): At the heart of democracy

Step through the doors of the Palais Bourbon to wander through the famous hemicycle where MPs debate, discover the magnificent library decorated by Eugène Delacroix, and visit the Hôtel de Lassay, the official residence of the President of the National Assembly.

• The Hôtel de Matignon (7th arrondissement): The secrets of the Government’s Town Hall

The Prime Minister’s official residence invites you to discover its elegant reception rooms and its three-hectare grounds, the largest private garden in the capital.

Architectural masterpieces and hidden gems

Photo : Amandine Goetz

• The Palais d’Iéna (16th arrondissement): Auguste Perret’s reinforced concrete masterpiece

Home to the Economic, Social and Environmental Council (CESE), this remarkable building is striking for its impressive rotunda, its theatrically designed meeting room and its iconic double-helix suspended staircase. A masterpiece of 20th-century architecture, situated opposite the Eiffel Tower.

• The Banque de France – Hôtel de Toulouse (1st arrondissement): The Galerie Dorée

Step inside a 17th-century townhouse that is home to the incredible Galerie Dorée, restored to its former glory, as well as the Banque de France’s state rooms.

• The Hôtel de la Marine (8th arrondissement): The splendour of the Place de la Concorde

Formerly the Crown’s Furniture Repository, this exceptional architectural complex offers unique tours through its stewards’ apartments and loggias, which provide breathtaking views of Paris.

Behind the scenes of the creative process and craft trades

Photo : Amandine Goetz

• Artisans’ workshops and haute couture houses

Every year, leading luxury houses and little-known artisan workshops open their doors on special occasions to showcase their rare skills: gold leaf gilding, art framing, painting restoration and fine watchmaking.

• Behind the scenes at the major theatres and opera houses

From the Opéra Comique to the set workshops of Parisian theatres, come and explore the backstage areas, the artists’ dressing rooms and the period costumes that are usually hidden from the audience’s view.

Our 3 tips for avoiding long queues

1. Plan ahead for ticket sales: Most major national attractions (the Élysée Palace, the National Assembly) open their free online bookings in early September. Set up your alerts.
2. Visit during off-peak times: Aim for the lunch break (between 12.30 pm and 2 pm) or the very end of the afternoon to avoid the peak crowds.
3. Discover local gems: Whilst the major palaces are often packed, architectural gems such as the Palais d’Iéna or the private mansions in the Marais offer a smooth and fascinating experience.

Whether you’re a history buff, a fan of modern architecture or simply curious to step inside places that are usually off-limits, these two days in September transform Paris into a vast open-air museum. Put on your trainers and keep your eyes peeled! 

 

Featured photo: Amandine Goetz