The Hibiya Line is a subway line in Tokyo, Japan, operated by the Tokyo Metro. It connects the northern area of Naka-Meguro to the southern district of Tameike-Sanno, covering a distance of approximately 14.3 kilometers. The line features 21 stations and is known for its efficient service and accessibility to major areas, including Tokyo Station and Roppongi. Opened in 1961, the Hibiya Line is distinguished by its dark blue color on subway maps. It serves as a vital transportation route for commuters and tourists alike, linking various neighborhoods and attractions throughout the city. The line is also integrated with other subway and train lines, enhancing connectivity across Tokyo.