Paris is one of the world's most fascinating and beautiful cities. With its cobbled streets, quaint cafés and iconic monuments, the city is a historical and cultural gem that can be explored for days on end without ever getting bored. But what also makes Paris so special are its stories, anecdotes and unusual places.
Behind its streets, its historic buildings, its relics, its basements and even its hotels, lie facts and unusual stories and anecdotes that fascinate us. We invite you to discover the secrets of the most emblematic objects and places, as well as the surprising spots that make up Parisian heritage. We warn you, you're about to see the capital in a whole new light!
Did you know, for example, that the Eiffel Tower was originally scheduled to be dismantled after the 1889 Universal Exhibition, but that its transformation into a radio antenna saved it from destruction? Or that the Père-Lachaise cemetery is home to the graves of such luminaries as Oscar Wilde, Edith Piaf and Jim Morrison? Why is the Sacré Coeur so white, and where does the story of the Phantom of the Opera come from?



This flower-filled park in the Yvelines hides an arboretum, royal secrets, and has inspired Blake and Mortimer.
In Buc, in the Yvelines, the park of Haut-Buc Castle is freely accessible year-round. A pedagogical arboretum, Louis XIV’s secret child, an eccentric astronomer, and the backdrop for Blake and Mortimer: this estate has more than one story to tell. Here’s more about this superb place in full bloom, a must for tulip lovers. [Read more]



Did you know that this keep in Essonne is a miniature replica of Philippe Auguste’s medieval Louvre?
Did you know? The keep of the Château de Dourdan, in Essonne, was built on the same model as Philippe Auguste’s medieval Louvre. Just 44 km from Paris, this listed monument is open to visitors year-round. [Read more]



Yvelines: where does the name of this 78-numbered department, formerly known as Seine-et-Oise, come from?
The Yvelines department (78), located to the west of Paris in Île-de-France, bears a name with surprisingly medieval roots. A vanished forest, ancient Latin, and a Versailles-born poet are behind this appellation, adopted by the National Assembly in 1968 to replace Seine-et-Oise. Here’s the full story. [Read more]



Why is this little-known Montmartre house guarded by two imperial eagles?
Under the shadow of the famous Maison Rose, Rue de l'Abreuvoir hides a shrine in honor of Napoleon. Guarded by two majestic imperial eagles, this house was once the home of a historian obsessed with the emperor—a historically offbeat stop that challenges Montmartre’s bohemian image. [Read more]



World Unicorn Day: So, where does this legendary creature actually come from?
She spews glitter, smells of roses, leaves flowers and rainbows in her wake: the unicorn is kids’ favorite legendary creature. Having made a strong comeback in pop culture in recent years, the unicorn remains an object of eternal fascination. On the occasion of World Unicorn Day, this Thursday, April 9, 2026, let’s explore its origins together. [Read more]



These archaeological remains of a Gallo-Roman villa can be visited on a campus in Essonne.
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In Yvelines, you can climb to the top of this tower for a sweeping view of the medieval town.
Rising 25 metres above the Yvelines, Houdan's keep hides a history as solid as it is unusual. A survivor from the 12th century, this stone colossus weathered demolition by being transformed into a functional water tower for nearly a century. An architectural curiosity that today offers an exceptional panorama of the medieval town. [Read more]



The only medieval keep with buttresses in Île-de-France is located in the Yvelines.
In Yvelines, at Maurepas, the remains of a 20-meter-high cylindrical keep stand as the sole remnant of a medieval fortress from the 12th century. Recognized as a historic monument since 1926, it still holds the secrets of a turbulent past. Here’s the story. [Read more]



Did you know? Why do we indulge in chocolate during Easter celebrations?
It’s a well-known fact: sweet lovers and connoisseurs indulge in kilos of chocolate during Easter celebrations in 2026. But do you really know where this tradition comes from? Here's what you need to know. [Read more]



This iconic stadium of French football conceals the ruins of a 12th-century church in the Yvelines
Behind the iconic gates of the National Football Center lies a surprising history that extends far beyond the sport. Long before it became the training ground for France’s national team, the Clairefontaine estate has endured centuries of change—from an English hunt pavilion to a war wounded refuge—while still preserving remnants of a 12th-century church. [Read more]



Heritage: What exactly is a "Remarkable Garden"? Where does this prestigious label come from?
If you enjoy strolling through Paris and the Île-de-France region, you've probably already come across the "Remarkable Garden" sign. But what exactly does this label signify? Here's what you need to know. [Read more]



Did you know? Before the metro, Parisians traveled by horse-drawn omnibus — the ancestor of today’s RATP network.
Before the advent of the metro, Paris was served by horse-drawn omnibuses. From 1828 to 1913, these large horse-drawn carriages crisscrossed the city streets, laying the groundwork for what would eventually become the RATP. [Read more]



Did you know? Bois de Boulogne was once a royal hunting forest.
Did you know that Bois de Boulogne, the lush green oasis in Paris's 16th arrondissement, was once a vast royal forest where French monarchs came to hunt? Here’s a captivating journey through its millennia-old history. [Read more]



Did you know? Disneyland once featured an attraction dedicated to Michael Jackson, and another based on a cult classic film.
At Disneyland Paris, the attractions Captain EO and Honey, I Shrunk the Audience left their mark on Discoveryland with two beloved 3D rides. One transported visitors into the futuristic world of Michael Jackson, while the other was inspired by the film Honey, I Shrunk the Kids. Let’s take a closer look... [Read more]



This stunning monument on the Île de la Cité exhibits an asymmetry, the result of a whimsical decision by Haussmann.
Located on the Île de la Cité, at the very heart of Paris's historic judiciary district, the Commercial Court building stands as an often-overlooked masterpiece of the Second Empire era. With its imposing dome and lavish interior, this architectural gem conceals a bold design choice: a deliberately offset dome crafted to accommodate the urban planning visions of Baron Haussmann. [Read more]



Yvelines: 13th-century Gothic chapel, now restored, saved by a painter
In Croissy-sur-Seine, in the Yvelines, a 13th-century Gothic chapel nearly vanished from view. The Saint-Léonard-and-Saint-Martin Chapel guards nearly a thousand years of history—marked by royal pilgrimages, mysterious relics, and an unexpected artistic rebirth. [Read more]



Historic flooding of the Seine in Paris: shocking images of the worst flooding
Do you know the worst flood ever to hit Paris? A look back at the flood of January 1910, a historic event that left its mark on the capital. [Read more]



This little-known Parisian church has become France's largest burial site
This massive stone dome conceals one of the most turbulent histories of the capital. Originally built to serve as Paris’s most magnificent church, the Pantheon was eventually repurposed as a national necropolis. Discover how a sacred monument evolved into France’s greatest tomb, honoring the figures who have left an indelible mark on our history. [Read more]



This 18th arrondissement swimming pool in Paris once served as the filming location for a well-known movie.
A true Art Deco treasure tucked away in the 18th arrondissement, the Amiraux Pool is much more than just a public swimming pool. Recognized as a historic monument, this masterpiece by Henri Sauvage has become a legendary backdrop in cinema history, notably featured in the beloved film Amélie. [Read more]



This cathedral in Seine-et-Marne is home to the only medieval wooden tower in the region.
In the heart of Meaux, the Saint-Étienne Cathedral instantly catches the eye with its strikingly unusual silhouette. Unlike its Parisian counterparts with their symmetric stone towers, its façade features a dark, massive structure. Known as the "Black Tower," it is the only cathedral tower in Île-de-France constructed from wood and slate. [Read more]



Did you know? From 1871 to 1977, Paris went without a mayor!
Paris truly isn't like any other city: it went over a hundred years without having an official mayor! Dive into this fascinating episode from the history of the French capital. [Read more]



This medieval tower, offering a breathtaking panoramic view of Essonne, was once used to measure the speed of light.
Perched atop a 30-meter-high hill, the Montlhéry Tower offers a breathtaking panoramic view of Essonne and the Île-de-France region. This historic medieval relic, officially listed as a Monument Historique, once served as a laboratory for some of the greatest scientists of the 19th century. Whether you're interested in its history, planning a visit, or just taking a leisurely walk, here's everything you need to know. [Read more]



Did you know? Which towns and villages in Yvelines are considered the best places to live?
The 2026 rankings of the best cities and towns to live in have just been announced. Versailles, Saint-Germain-en-Laye, Sartrouville — which municipalities in the Yvelines stand out in this national chart, based on 197 quality of life criteria? Here’s what you need to know. [Read more]



This hidden chapel in the Latin Quarter was designed by the architect of the Arc de Triomphe.
Did you know that nestled in the heart of the Latin Quarter is an overlooked masterpiece by the architect of the Arc de Triomphe? Serving as the headquarters for the Congregation of the Holy Spirit, the chapel on Rue Lhomond remains largely unknown to the public, yet it houses an extraordinary and remarkable interior. [Read more]



The Imperial Crown of Empress Eugénie at the Louvre Museum: Its History and Unique Features
It has dominated the news headlines in recent months: the crown of Empress Eugénie was stolen from the Louvre Museum in October 2025. Discover the story behind this priceless piece of French heritage. [Read more]



Municipal Theater of Fontainebleau, one of the most beautiful Italian-style theaters in Île-de-France, opens its doors to visitors for guided tours.
The Fontainebleau Municipal Theatre, one of the most stunning Italian-style theaters in Île-de-France, will open its doors to the public in 2026. Explore this historic gem of Seine-et-Marne through exclusive guided tours. [Read more]



The source of the Yvette: a mysterious statue in the Yvelines
Did you know? A mysterious statue represents the source of the Yvette. Nestled in the heart of the Yvelines, in Essarts-le-Roi, an intriguing sculpture marks the birth of this Île-de-France river. Open year-round, this hidden gem can be discovered during a leisurely stroll through the picturesque Chevreuse Valley. [Read more]



Super Bowl 2026: Exploring the history and origins of the NFL's championship game
In February, all Americans are behind their television sets to watch the Super Bowl! But do you know the origins of this ultra-popular sporting event, and do you know why the Super Bowl is called the Super Bowl? We explain. [Read more]



Did you know? The Obelisk of Concorde can also function as a sundial.
Need to check the time but don't have a watch? No worries: the Concorde Square Obelisk can function as a giant sundial... though it's not exactly precise. [Read more]



Did you know? The Eiffel Tower was originally meant to have a different name
You know it as the Eiffel Tower. But did you know that its identity could have been quite different? Discover a little-known anecdote about Paris's iron lady. [Read more]
All you have to do is take your science out for a stroll around Paris with your friends or family!