The Métro is a rapid transit system serving the city of Paris, France, and its surrounding suburbs. It was inaugurated in 1900 and has since become one of the most extensive and efficient subway systems in the world. The network consists of 16 lines, identified by numbers and colors, and covers approximately 214 kilometers of track. The Métro is known for its iconic design, including the distinctive Art Nouveau station entrances. It operates daily, providing millions of passengers with a convenient way to navigate the city. The system is also recognized for its affordability and frequent service, making it a popular choice for both locals and tourists.