WEBShinjuku (Japanese: 新宿区, Hepburn: Shinjuku-ku, IPA: [ɕiɲdʑɯkɯ] ⓘ), officially called Shinjuku City, is a special ward of Tokyo, Japan.It is a major commercial and administrative center, housing the northern half of the busiest railway station in the world (Shinjuku Station) as well as the Tokyo Metropolitan Government Building, the …