The 米兰地铁 (Milan Metro) is an extensive rapid transit system serving the city of 米兰, Italy. It consists of four main lines, identified by colors and numbers, which connect various neighborhoods and key locations, including the city center, airports, and major train stations. The system is known for its efficiency and cleanliness, making it a popular choice for both locals and tourists. Opened in 1964, the 米兰地铁 has undergone several expansions and upgrades over the years. It now covers approximately 100 kilometers and has over 100 stations. The metro operates from early morning until midnight, providing a reliable mode of transportation for daily commuters and visitors exploring the vibrant city.