What if the Hauts-de-Seine have kept a few secrets tucked away? Located to the west of Paris, the department of 92 is often defined by its most famous spots, such as the Domaine de Saint-Cloud, the Albert-Kahn museum and gardens, or the Sceaux Park. Beneath these iconic images lies a quieter, quirkier heritage—one that is sometimes a touch enigmatic.
Here, history slips in everywhere. In a facade you glance past without giving it a second thought, in an old village neighborhood, in an architectural detail, or in a anecdote you pass along in almost a whisper. The Hauts-de-Seine have this amusing characteristic: they blend large cities, pockets of greenery, the banks of the Seine, ancient heritage and contemporary architecture. A real little Île-de-France millefeuille.
In this series, we’re not just rehashing places everyone already knows. The idea is to track down the pépites secrètes des Hauts-de-Seine, the hidden gems that lie just around the corner from daily life.
We’ll talk about hidden heritage, fun facts, quirky details, traces of the past, and small local stories. In short, for the curious minds: the 92 hasn’t revealed all of its secrets yet.



Near Paris, the mystery surrounding this underground "cathedral" remains intact — you can visit it.
In the Paris region, many secrets still lie buried beneath our feet. In Hauts-de-Seine, the network of underground cellars that runs beneath the town of Sèvres unveils a host of mysteries, including a peculiar chamber nicknamed the cathedral, about which we still know almost nothing. [Read more]



Pavillon des Indes: a cultural center with the air of an unusual oriental palace on the outskirts of Pairs
Nestled in the Parc de Bécon in the heart of Courbevoie, the Pavillon des Indes is an astonishing example of Oriental palace architecture. Part World's Fair legacy, part lively cultural venue, this exotic gem is well worth a visit. [Read more]



At Asnières-sur-Seine (92), a former station from 1878 is set to blend a restaurant with wellness and sports facilities.
A UNESCO-listed historical monument in Hauts-de-Seine, this former station—originally built for the 1878 Universal Exhibition—has long been neglected. Now, it’s entering an exciting new chapter with plans to transform it into a vibrant community hub, combining a 900-square-meter fitness and wellness space with a 500-square-meter bistro-style restaurant. [Read more]



In Suresnes (92), this hospital still conceals remnants of the estate belonging to the founder of haute couture.
On the heights of Suresnes (Hauts-de-Seine - 92), the Foch Hospital is now an integral part of the landscape. Yet, long before these medical buildings arose, the site was home to a lavish estate frequented by Europe’s elite. Behind this modern facade lies the story of a man who transformed fashion and helped establish Paris as the global capital of haute couture. [Read more]



Near Paris, this free museum is housed within a historic former Nordic pavilion.
In Courbevoie, just outside Paris, hidden behind the striking architecture of the old Sweden and Norway Pavilion, you'll find a free museum dedicated to 19th-century art. This cultural gem is located right within a historic remnant of the 1878 Universal Exhibition! [Read more]



In the Hauts-de-Seine, this portal stands as the final remnant of the castle built by the pioneer of haute couture.
In Suresnes, in the Hauts-de-Seine department (92), a gate adorned with peculiar snail motifs has just undergone restoration. Behind these unusual sculptures lies the final remnant of an opulent estate tied to the history of haute couture. [Read more]



In the Hauts-de-Seine, this winch stands as one of the few remaining relics of a former quarry.
In the Hauts-de-Seine, a mysterious mechanism made of stone and wood evokes an industrial past that has largely faded into history. This rare remnant of the former stone quarries of the Paris basin is still occasionally brought to life during demonstrations, especially during the European Heritage Days. [Read more]



In Vanves (92), restoration project underway for the ice cellars chapel at Frédéric-Pic Park
Discover the restoration project of the ice-cellar chapel at Frédéric-Pic Park in Vanves (Hauts-de-Seine, Île-de-France), an ongoing effort to breathe new life into these unusual semi-buried structures from the 18th century. [Read more]
This page may contain AI-assisted elements, more information here.















