Paris is 105.4 km² holding 2,047,602 people, wrapped in twenty arrondissements that spiral outward from the Louvre. Almost everything a visitor comes for is inside that spiral, and most of it is walkable.
The Seine cuts the city in two and everything is described in relation to it. The Right Bank to the north holds the commerce and the great institutions; the Left Bank to the south holds the universities and the bookshops. Between them the Île de la Cité and the Île Saint-Louis are where the city started.
Practical information
Language spoken
French
French is the language of the Republic under Article 2 of the Constitution
Dialling code
+33 1
Paris and the Île-de-France; drop the leading 0 of 01 when calling from abroad
Currency
Euro (€, EUR)
France has used the euro as its official currency since 2002
Emergency number
112
One number across the country; 15 reaches an ambulance directly
Plug type
Type E · 220 V
Round-pin sockets use a projecting earth pin
Tap water
Safe to drink
The health ministry says tap water may be consumed safely unless local authorities issue specific advice
Operator-confirmed hours and prices for Notre-Dame de Paris are Not recorded pending review. Treat the what it is details as provisional when arranging this stop in Paris.
Operator-confirmed hours and prices for Arc de Triomphe are Not recorded pending review. Treat the what it is details as provisional when arranging this stop in Paris.
Sacré-Cœur was built as an apology. After France lost the war of 1870, Bishop Felix Fournier proposed a church as an act of national penitence, reading the defeat as divine punishment for the country's moral decline since the Revolution.
Montparnasse Tower is a 210 m office block finished in 1973, and the reaction to it is the reason Paris has not built another skyscraper in its centre since.
The Place de la Concorde is a 7.6-hectare traffic island that was once the busiest execution ground in Europe. It is the largest public square in Paris.
The Jardin du Luxembourg is a 23-hectare formal garden on the Left Bank, laid out from 1612 for a queen who wanted a Florentine garden in Paris and built by the French Senate, which still owns the palace at its…
The Louvre Pyramid is the glass entrance structure built in the museum's main courtyard in the 1980s, and it is a part of the Louvre — its main entrance and one of the more argued-over additions to central Paris …
Behind the gate at Place de la Sorbonne sits a university with a name older than most nations: Robert de Sorbon founded a theology college here in 1257 under the patronage of Louis IX, and the word "Sorbonne" has meant…
Place Vendôme is an octagon of uniform stone façades built as a single architectural composition, not a collection of separate buildings that happened to end up on the same square.
This point marks ground fought over during the Battle of Paris of 30-31 March 1814, the engagement that ended the War of the Sixth Coalition on French soil and forced Napoleon's abdication weeks later.
Porte Saint-Martin is a triumphal arch built in 1674 at the order of Louis XIV to celebrate his military victories on the Rhine and in Franche-Comte, standing at what was then a gate in the walls of Paris built under…
The Chapelle expiatoire is a neoclassical funerary chapel built between 1815 and 1826 on the site of the former Madeleine cemetery, where the guillotined bodies of Louis XVI and Marie Antoinette were buried in unmarked graves covered with quicklime in…
District boundaries come from OSM administrative relations, so a district page holds exactly the places inside it — plus, for the islands and the coast, the nearest district by proximity.
The arrondissements spiral clockwise from the centre: the 1st sits at the Louvre and the Île de la Cité, and the numbers wind outward to the 20th. Learning that shape is the single most useful thing a first-time visitor can do, because every address in the city carries its arrondissement and the number tells you roughly where you are.
The Right Bank — north of the Seine — is the 1st through 4th at the centre, then the grand avenues of the 8th and 16th to the west and Montmartre in the 18th to the north. The Louvre, the Champs-Élysées, the Opéra and Sacré-Cœur are all Right Bank.
The Left Bank — south — is the 5th, 6th and 7th: the Latin Quarter, Saint-Germain, the Panthéon, the Musée d'Orsay and the Eiffel Tower. It is the older-feeling half and the one with the bookshops.
The Périphérique, completed in 1973, rings the whole of it. Inside is Paris; outside is the metropolitan area of 13,320,752 people across 18,940.7 km², which is a different thing.
The Métro, and then walking. Paris is small enough that the two together cover everything.
The Métro opened on 19 July 1900 during the World's Fair and now runs 16 lines — numbered 1 to 14 plus 3bis and 7bis — across 321 stations, 61 of which are interchanges. Stations sit 548 m apart on average, which is why a Métro journey of two stops is usually a walk. It carries 1.523 billion passengers a year, 4.17 million a day.
The RER extends further out into the suburbs and is what takes you to the airports and to Versailles. Châtelet–Les Halles, where five Métro lines meet three RER lines, is the largest interchange and the one to avoid at rush hour.
Single tickets and multi-use passes are both sold, and the Navigo Easy card is the contactless option.
Checked 2026-08-23
Common questions
How many days does Paris need?
Four to five. Three days covers the central monuments — the Louvre, Notre-Dame, the Eiffel Tower, the Champs-Élysées — at a pace that is not punishing. A fourth adds a proper museum day, and a fifth adds Montmartre or a day out at Versailles.
How do the arrondissements work?
They spiral clockwise from the centre. The 1st is at the Louvre and the Île de la Cité and the numbers wind outward to the 20th. Every Paris address carries its arrondissement, so the number tells you roughly where something is.
What is the difference between the Right Bank and the Left Bank?
The Seine. The Right Bank to the north holds the commerce and the great institutions — the Louvre, the Champs-Élysées, the Opéra, Montmartre. The Left Bank to the south holds the universities, the Latin Quarter, the Panthéon, the Musée d'Orsay and the Eiffel Tower.
Is the Métro the best way around?
For anything over a kilometre, yes. It opened on 19 July 1900 and runs 16 lines across 321 stations, with stations 548 m apart on average — which means a two-stop journey is usually faster on foot.
When is the best time to come?
April to June and September to October. August is when Parisians leave and tourists arrive, which is the worst of both — shuttered restaurants and full museums.
How big is Paris really?
The city proper is 105.4 km² with 2,047,602 people, ringed by the Périphérique completed in 1973. The metropolitan area outside it holds 13,320,752 people across 18,940.7 km².
Turn this list into a plan
Set your days, your pace and the hours you actually want to be out. The planner works around closing days and travel time, and leaves room to eat.
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