Viaje a París

The Paris Métro or Métropolitain (French: Métro de Paris) is the rapid transit metro system in Paris, France. It has become a symbol of the city, noted for its density within the city limits and its uniform architecture influenced by Art Nouveau. The network's sixteen lines are mostly underground and run to 214 km (133 mi) in length. There are 301 stations (384 stops), of which 62 facilitate transfer to another line.

Paris has one of the densest metro networks in the world, with 245 stations within 86.9 km² (34 sq mi) of the city of Paris. Lines are numbered 1 to 14, with two minor lines, 3bis and 7bis. The minor lines were originally part of lines 3 and 7 but became independent.

Lines are identified on maps by number and colour. Direction of travel is indicated by the destination terminus.

Paris is the second busiest metro system in Europe, after Moscow. It carries 4.5 million passengers a day, and an annual total of 1.479 billion (2009). Châtelet – Les Halles, with 5 Métro lines and three RER commuter rail lines, is the world's largest underground station.

The first line opened without ceremony on 19 July 1900, during the World Fair (Exposition Universelle). The system expanded quickly until the First World War and the core was complete by the 1920s. Extensions into suburbs (together with Line 11) were built in the 1930s.

The French Republic (French: République française [ʁepyblik fʁɑ̃sɛz]), commonly known as France (English ⁱ/ˈfræns/ franss or /ˈfrɑːns/ frahnss; French: [fʁɑ̃s] ( listen)), is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France extends from the Mediterranean Sea to the English Channel and the North Sea, and from the Rhine to the Atlantic Ocean. It is often referred to as l’Hexagone ("The Hexagon") because of the geometric shape of its territory. It is the largest western European country and it possesses the second-largest exclusive economic zone in the world, covering 11,035,000 km² (4,260,000 sq mi), just behind that of the United States (11,351,000 km² / 4,383,000 sq mi).

A rapid transit, underground, subway, elevated railway, metro or metropolitan railway system is an electric passenger railway in an urban area with a high capacity and frequency, and grade separation from other traffic. Rapid transit systems are typically located either in underground tunnels or on elevated rails above street level. Outside urban centers, rapid transit lines may run on grade separated ground level tracks.

Service on rapid transit systems is provided on designated lines between stations using electric multiple units on rail tracks, although some systems use guided rubber tyres, magnetic levitation, or monorail. They are typically integrated with other public transport and often operated by the same public transport authorities. Rapid transit is faster and has a higher capacity than trams or light rail (but does not exclude a fully grade separated LRT), but is not as fast or as far-reaching as commuter rail. It is unchallenged in its ability to transport large amounts of people quickly over short distances with little land use. Variations of rapid transit include people movers, small-scale light metro and the commuter rail hybrid S-Bahn.