Seoul Metro is a vast and efficient subway system serving the city of Seoul, South Korea. It consists of 23 lines that cover over 1,000 kilometers, making it one of the largest metro systems in the world. The network connects various neighborhoods, business districts, and key landmarks, providing a convenient mode of transportation for millions of daily commuters. The metro operates from early morning until midnight, with trains arriving frequently. Each station is equipped with modern amenities, including escalators, elevators, and digital information displays. The system is known for its cleanliness, safety, and affordability, making it a popular choice for both locals and tourists.