Paris Métro Line 3 in the context of "Paris Métro Line 3bis"

The Paris Métro, short for Métropolitain, is a rapid transit system serving the Paris metropolitan area in France. A symbol of the city, it is known for its density within the capital's territorial limits, as well as its uniform architecture and historical entrances influenced by Art Nouveau. The system is 245.6 kilometres (152.6 mi) long, mostly underground, as well as its 321 stations of which 61 allow the riders to transfer between the sixteen lines (with an additional four under construction and one in project), all numbered 1 to 14, with two extra branches, 3bis and 7bis, named such as they are former parts of Lines 3 and 7 respectively. Three of these lines (1, 4 and 14) are fully automated, and the additional four are also planned as such. Lines are identified on maps by an individual number and an associated specific colour, all part of an official palette, with the traveling direction indicated by the terminus, the last stop on each line. All trains travel from one end of the line to the other, serving every station along the way. The Paris Métro is operated by the Régie autonome des transports parisiens (RATP), which also operates part of the RER (commuter standard train) network, most of the Francilian light rail lines and many bus routes around and within Paris itself.

It is the second-busiest metro system in Europe, as well as the twelfth-busiest in the world. It carried 1.476 billion passengers in 2024, roughly 4.04 million passengers a day, which makes it the most used public transport system in Paris. It is one of the densest metro systems in the world, with 244 stations within the 105.4 km (41 sq mi) of the City of Paris. Châtelet–Les Halles, with five Métro and three RER commuter rail lines, is one of the world's largest metro stations. The system generally has poor accessibility due to its old age (established 125 years ago) and because most of the current infrastructure was built before accessibility standards emerged, with few stations retrofitted since. On the flip side, all new infrastructure and rolling stock meets current accessiblity standards, including extensions of historic lines.

The Place de la République (French pronunciation: [plas d(ə) la ʁepyblik]; English: Republic Square; known until 1879 as the Place du Château d'Eau, [plas dy ʃɑto do]) is a square in Paris, located on the border between the 3rd, 10th and 11th arrondissements. The square has an area of 3.4 ha (8.4 acres). Named after the First, Second and Third Republics, it contains a monument, the Monument à la République, which includes a statue of the personification of France, Marianne.

The Métro station of République lies beneath the square, served by Line 3, Line 5, Line 8, Line 9 and Line 11. It is one of the network's main transfer points on the Rive Droite.

Villiers (French pronunciation: [vilje]) is a station on Line 2 and Line 3 of the Paris Métro. It is located on the border of the 8th and 17th arrondissement of Paris.

Arts et Métiers (French pronunciation: [aʁz‿e metje], literally "Arts and Trades") is a station on lines 3 and 11 of the Paris Métro. It is located in the 3rd arrondissement.

République (French pronunciation: [ʁepyblik] ) is a station on lines 3, 5, 8, 9 and 11 of the Paris Métro. It is located under the Place de la République, at the tripoint border of the 3rd, 10th and 11th arrondissements. It is an important interchange station; its 16.6 million users (2019) make it the seventh busiest out of 302 on the Métro network.

Père Lachaise Cemetery (French: Cimetière du Père-Lachaise [simtjɛʁ dy pɛʁ laʃɛːz], formerly Cimetière de l'Est, lit. 'Cemetery of the East') is the largest cemetery in Paris, France, at 44 hectares (110 acres). With more than 3.5 million visitors annually, it is the most visited necropolis in the world.

The Père Lachaise is located in the 20th arrondissement and was the first garden cemetery, as well as the first municipal cemetery in Paris. It is also the site of three World War I memorials. The cemetery is located on the Boulevard de Ménilmontant. The Paris Métro station Philippe Auguste on Line 2 is next to the main entrance, while the station Père Lachaise, on both Line 2 and Line 3, is 500 m (1,640 ft) away near a side entrance.

Père Lachaise (French pronunciation: [pɛʁ laʃɛːz]) is a station of the Paris Métro, serving Line 2 and Line 3 on the border of the 11th and 20th arrondissements.

Opéra (French: [ɔpeʁa] ) is a station on Lines 3, 7 and 8 of the Paris Métro. It is named after the nearby Opéra Garnier. Located at the end of the Avenue de l'Opéra, it serves the district of Boulevard Haussmann. Its main entrances are located on the Place de l'Opéra, built in a marble design (instead of the characteristic iron metro entrances of Hector Guimard), to not spoil the view of the opera house.

The station is connected by an underground passage to Auber on RER A. From Auber, additional stations and lines can be reached via a sequence of underground passages, namely Havre–Caumartin for Line 3 and Line 9, and Haussmann–Saint-Lazare for RER E, the latter being connected to Saint-Lazare for Line 3, Line 12, Line 13 and Line 14, and the latter in turn being connected to Saint-Augustin for Line 9.