What surprises in Paris: details not in the guidebook

In Paris, metro doors are opened by hand, sparkling water is poured for free on the street, and the city's narrowest street is less than two meters wide. That is how the city behaves with those who came for postcards. Below are the details a careful visitor notices: dogs in cafes, transparent trash bins, kilometer zero, the meridian line under your feet, and the bronze Zidane, who has long been gone from Paris. Many of these do not make it into guidebooks, but all of them can be found on the map at the end of the article.

Transport with its own rules

💡 In short:

• Doors in older cars are opened by the passenger: press the button or pull the lever.
• Fully automated lines 1, 4, and 14 open the doors themselves.

You will recognize the Paris metro by one habit. Doors here do not swing open on their own: the passenger opens them. Most lines have a button or a lever, and the car waits for that motion. Lines 1, 4, and 14 run automatically (as of 09/2026, RATP material on automation), and the doors there slide open by themselves.

The network density is also surprising: in the center, stations come almost without gaps, and walking between neighboring ones is sometimes faster. On automated lines, platforms are enclosed by platform screen doors (as of 09/2026, RATP material on automated lines). Next in line is line 15 of the new Grand Paris Express ring (as of 09/2026, Île-de-France Mobilités).

You barely need a map: just look at the line number and the final station. That makes it easier to avoid riding an extra loop. If the car stops and the door does not open, look for a handle next to the door: that is the most common mistake guests make on their first day.

Dogs in cafes

Dogs in Paris are almost full citizens. They are taken into cafes and restaurants if the owner does not mind, and the rules for keeping them are collected on the city hall page about dogs. About 100,000 dogs live in the capital (as of 10/2025, Le Parisien), and the same newspaper calls Paris a city with one of the highest dog densities in the world.

Dogs are spoiled here: brunches, grooming salons, and toy stores are opened for them (as of 10/2025, Le Parisien material about dogs). You will meet dogs with neat haircuts on every walk. For a Parisian this is an ordinary sight, for a guest a surprise.

AIIllustrative image: AI-generated

If you're traveling with a dog, choose a cafe with a terrace: they'll almost always let you in. The owner will appreciate a leash and calm behavior, and a bowl of water is often brought without you having to ask.

The catch: dogs are not allowed in museums, grocery stores, and many markets, so check the rules at the entrance.

Trash cans you can see through

The transparent trash cans in Paris didn't appear for aesthetic reasons. They were introduced after a series of bombings in 1995, the most notorious of which occurred on July 25 at the Saint-Michel station (Wikipedia on the 1995 attacks). At that time, about 300 trash cans were removed from the city or welded shut (as of 08/1995, Libération). A metal box concealed its contents, so transparent bags on a ring took their place. Now any passerby can see what's inside. In total, about 20,000 trash cans stood on the streets back then (as of 08/1995, 1995 Libération article).

Cleanliness comes down to the habits of city residents. Trash cans are placed frequently, and the collection service runs on a schedule. If there's no trash in sight, it means it was picked up in the morning.

Water: 1,200 fountains and sparkling water on the street

Tap water in Paris is drunk without boiling. The city takes pride in its treatment system, and you can fill up at a street fountain: according to the city water utility, the capital has about 1,200 fountains and drinking water points (as of 09/2026, Eau de Paris). The taste is neutral, with no chlorine smell, so you won't need bottles on a long walk.

The most recognizable of these are the green cast-iron Wallace fountains with four caryatids. The first was installed on Boulevard de la Villette in July 1872, funded by the British philanthropist Richard Wallace; today there are 109 of them (as of 09/2026, Eau de Paris on Wallace fountains).

© Julien Ricard from Paris, France · CC BYPhoto: Julien Ricard from Paris, France, CC BY (https://creativecommons.org/licenses/by/2.0), Wikimedia Commons

There's also a detail that even many Parisians don't know: in 17 fountains, the water is sparkling, free of charge. The first such fountain started operating in the Reuilly garden in 2010 (as of 09/2026, Eau de Paris). Look for the sign "eau pétillante" and bring an empty bottle with you.

Kilometer zero by the cathedral

All distances between Paris and other cities in France are measured from a single point. It is a bronze plaque on the square in front of Notre-Dame Cathedral. Fourteen national roads radiate out from the capital (as of 09/2026, city hall page about kilometer zero). The plaque is set flush into the stones, and you can easily walk right past it. After the cathedral restoration, the plaque was returned to its original spot and set back into the paving stones (as of 09/2026, city hall news about the plaque's return).

© Annick Bregain · CC BY-SAPhoto: Annick Bregain, CC BY-SA (https://creativecommons.org/licenses/by-sa/4.0), Wikimedia Commons

Tourists love this spot. People stand on the plaque and take photos to start their trip from zero. In the morning there are fewer people and the light is softer. Come when the square opens.

Meridian under your feet

Another line that almost nobody notices crosses the entire city from north to south. France long measured longitude not from Greenwich but from its own Paris Meridian, and in 1994 the Dutch artist Jan Dibbets marked it on the pavement with 135 bronze medallions inscribed "ARAGO" in honor of the astronomer François Arago (Atlas Obscura on the Arago medallions).

© Unknown author · CC BY-SAPhoto: Unknown author, CC BY-SA (http://creativecommons.org/licenses/by-sa/3.0/), Wikimedia Commons

The medallions, about 12 centimeters in diameter, are set into sidewalks and floors: several lie in the courtyard of the Palais-Royal, and there are some near the Louvre and in the Luxembourg Garden. Finding all of them is a day's entertainment in itself, and one or two will turn up on their own if you watch your step.

The narrowest street in the city

A stone's throw from kilometer zero, on the Left Bank, hides the Street of the Fishing Cat, rue du Chat-qui-Pêche. It is 1.8 meters wide and 29 meters long, and it was laid out in 1540 from the Quai Saint-Michel to Rue de la Huchette (Wikipedia on rue du Chat-qui-Pêche).

© LPLT · CC BY-SAPhoto: LPLT, CC BY-SA (https://creativecommons.org/licenses/by-sa/3.0), Wikimedia Commons

Two passersby have to edge past each other sideways here, and in the morning the alley is empty and good for photos. During the day the surrounding Latin Quarter fills with tourists and kebab shops, so stop by on your way to the cathedral.

The catch: in the evening the alley is dark and cramped, not suitable for walking with a suitcase.

The bronze Zidane that is not here

The French remember the 2006 World Cup final not for its goals. Zinedine Zidane headbutted Marco Materazzi in the chest, and France lost to Italy on penalties. The artist Adel Abdessemed cast that moment in bronze, five meters tall: the sculpture "Coup de tête" was shown in front of the Centre Pompidou in September 2012 (Wikipedia article on the Headbutt sculpture.

Looking for it on the square today is pointless. In 2013 the work was taken to Doha, where it stood on the waterfront for less than a month, then moved to Mathaf, the Arab Museum of Modern Art (same Wikipedia article. So the legend of the "bronze Zidane in central Paris" is only half true: the city really did cast character over result, but another country now keeps it.

Where to find these details on the map

All the points discussed here are within walking distance of each other in the center: the zero kilometer marker, the narrowest street, the Saint-Michel station, the Arago medallions in the Palais-Royal, the square in front of the Pompidou where Zidane stood, and the stations of the automated lines.

⁉️🤔 Frequently asked questions

Is it true that you have to open the doors yourself on the Paris metro?

Yes, on most lines. You press a button or turn a lever, and the doors open. Fully automated lines 1, 4, and 14 open the doors without you. Verified 09/2026 on the official RATP website.

Can you drink tap water in Paris?

Yes. Tap water in Paris is constantly treated and monitored, and locals drink it without boiling. Free fountains are available on the streets, some with sparkling water (as of 09/2026, Eau de Paris). Buying bottled water is not necessary.

Can you bring a dog into a Paris cafe?

Often yes. The owner decides whether to allow animals, and many cafes welcome dogs. The city's dog regulations are collected on the Paris city hall page about dogs.

Where is the zero kilometer point of France?

In the square in front of Notre-Dame Cathedral. It's a bronze plaque set into the stones, from which distances to cities across the country are measured.

Where is the bronze statue of Zidane?

No longer in Paris. The sculpture "Coup de tête" by Adel Abdessemed was displayed in front of the Centre Pompidou in 2012, and in 2013 it was moved to Doha, where it is held at the Mathaf museum (Wikipedia). In Paris, only the story remains.

What are the bronze circles in the sidewalks of Paris?

They are the Arago medallions, 135 pieces along the old Paris meridian running north to south through the city (Atlas Obscura). Each one bears the inscription ARAGO and the letters N and S. Several are located in the courtyard of the Palais-Royal, which is the easiest place to start looking.

In short: what to see in Paris

Paris reveals itself not at viewing platforms, but in the small details. Half a day is enough for this kind of walk. Start at the zero kilometer plaque by the cathedral and turn onto rue du Chat-qui-Pêche. Then walk along the embankment with an empty bottle: fill it with sparkling water at a fountain and count the Arago medallions on your way to the Palais-Royal.

© Yann Caradec from Paris, France · CC BY-SAPhoto: Yann Caradec from Paris, France, CC BY-SA (https://creativecommons.org/licenses/by-sa/2.0), Wikimedia Commons

Look around, and the city will show you facts you won't find in a guidebook.