The Seoul Subway is a vast and efficient public transportation 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 subway networks in the world. The subway is known for its punctuality, cleanliness, and safety, providing a reliable way for residents and tourists to navigate the city. Each subway station is equipped with modern amenities, including digital signage and free Wi-Fi. The system operates from early morning until midnight, with trains arriving frequently. The Seoul Subway also connects to other forms of transportation, such as buses and the Incheon International Airport Express, enhancing overall accessibility.