Line 4 · Paris
Line 4 opened on April 21, 1908, between Porte de Clignancourt and Châtelet. The southern section, from Porte d'Orléans, opened in 1909, and in January 1910 the central section from Châtelet to Raspail joined the two halves together. It was extended south to Mairie de Montrouge in 2013 and to Bagneux - Lucie Aubrac in January 2022, taking it beyond the city limits.
At a glance
- Stations
- 29
- From
- Porte de Clignancourt
- To
- Bagneux - Lucie Aubrac
- Interchanges
- 11
- Difficulty
- Lv 4 of 7
- Keystrokes
- ~403
Line 4 runs from Porte de Clignancourt to Bagneux - Lucie Aubrac, 29 stops in the order you type them. Measured in straight lines between the station coordinates, the run is about 12.5 km, an average of 450 m between stops. The longest gap is Mairie de Montrouge to Barbara, about 980 m, and the shortest is Montparnasse - Bienvenüe to Vavin, about 250 m. The real track is a little longer than these straight lines.
Typing every station name once takes about 403 keystrokes, which is difficulty level 4 of 7 among Paris's lines. The level only compares lines within one city, so use the keystroke count to compare across cities. At the Porte de Clignancourt end the game shows The Saint-Ouen flea market, and at the Bagneux - Lucie Aubrac end, The church of Saint-Hermeland.
You can change to 13 other lines: Line 12, Line 2, Line 5, Line 7, Line 8, Line 9, Line 3, Line 1, Line 11, Line 14, Line 10, Line 6, Line 13. The busiest interchange is Châtelet, where 4 other lines meet this one. The interchange stations are Marcadet - Poissonniers, Barbès - Rochechouart, Gare du Nord, Gare de l'Est, Strasbourg - Saint-Denis, Réaumur Sébastopol, Châtelet, Odéon, and 3 more.
Along the way
The game shows a nearby place at each station. Some of the ones on Line 4:

The Saint-Ouen flea market at Porte de Clignancourt. Second-hand stalls under awnings and tin roofs on a street corner of the Vernaison market, north of the station on the far side of the ring road.Photo: GFreihalter · CC BY-SA 4.0 
Rue Marcadet at Marcadet - Poissonniers. Rue Marcadet, straight and lined with stone buildings with shops on the ground floor, about 340 metres from the station.Photo: Chabe01 · CC BY-SA 4.0 Lariboisière Hospital at Barbès - Rochechouart. The long pavilions of pale stone of Lariboisière Hospital, behind a lawn edged with shrubs.Photo: GFreihalter · CC BY-SA 3.0 
The Porte Saint-Martin at Château d'Eau. The triumphal arch of the Porte Saint-Martin, built in 1674 in honour of Louis XIV, with its three passages and bas-reliefs, about 500 metres from the station.Photo: Benutzer · CC BY-SA 3.0 de 
A building on Rue Réaumur at Réaumur Sébastopol. The big metal-framed bay window of a building on Rue Réaumur, set in carved stone with Art Nouveau motifs.Photo: Neoclassicism Enthusiast · CC BY-SA 4.0 
Tour Saint-Jacques and the Fontaine du Palmier at Châtelet. The Fontaine du Palmier, built in 1808 to celebrate Napoleon's victories, is topped by a gilded Victory. Behind it, the Flamboyant Gothic Tour Saint-Jacques is all that remains of the church of Saint-Jacques-de-la-Boucherie, destroyed in 1797.Photo: DXR · CC BY-SA 3.0 
The Fontaine Saint-Michel at Saint-Michel. The Fontaine Saint-Michel under its tall stone arch: the archangel overcomes the devil above the basins. It was built around 1860.Photo: Guilhem Vellut · CC BY 2.0 
The church of Saint-Germain-des-Prés at Saint-Germain-des-Prés. The Romanesque bell tower of the church of Saint-Germain-des-Prés, dating from the 11th century, about a hundred metres from the station.Photo: Diego Delso · CC BY-SA 4.0 
The Moulin de la Charité at Montparnasse - Bienvenüe. The stone tower of the old Moulin de la Charité in the Montparnasse cemetery, about 600 metres from the station.Photo: Myrabella · CC BY-SA 3.0 
The artists' studios on Rue Campagne-Première at Raspail. An artists' studio building in Montparnasse, with decorated stoneware façades and large glazed windows, on Rue Campagne-Première, right near the station.Photo: Jmgobet · CC BY-SA 3.0 
The church of Saint-Pierre de Montrouge at Alésia. The church of Saint-Pierre de Montrouge, in stone and brick, with its spired bell tower, seen from the street, close to the station.Photo: Guilhem Vellut · CC BY 2.0 
Montrouge town hall at Mairie de Montrouge. Montrouge town hall, built from 1880 to 1883 in brick and stone, with its slate roof and turret, about 160 metres from the station.Photo: Chabe01 · CC BY-SA 4.0
All 29 stations
In typing order, from Porte de Clignancourt to Bagneux - Lucie Aubrac:
- Porte de Clignancourt
- Simplon
- Marcadet - Poissonniers ⇄
- Château Rouge
- Barbès - Rochechouart ⇄
- Gare du Nord ⇄
- Gare de l'Est ⇄
- Château d'Eau
- Strasbourg - Saint-Denis ⇄
- Réaumur Sébastopol ⇄
- Étienne Marcel
- Les Halles
- Châtelet ⇄
- Cité
- Saint-Michel
- Odéon ⇄
- Saint-Germain-des-Prés
- Saint-Sulpice
- Saint-Placide
- Montparnasse - Bienvenüe ⇄
- Vavin
- Raspail ⇄
- Denfert-Rochereau ⇄
- Mouton-Duvernet
- Alésia
- Porte d'Orléans
- Mairie de Montrouge
- Barbara
- Bagneux - Lucie Aubrac
⇄ marks an interchange with another line.