Shinjuku City, known as Shinjuku-ku in Japanese, is a bustling ward in Tokyo, Japan, renowned for its towering skyscrapers, vibrant nightlife, and the world's busiest railway station, Shinjuku Station. This area is a major commercial and administrative center, housing the Tokyo Metropolitan Government Building and a variety of entertainment options, including the famous Kabukicho district, which is Japan's largest red light area. Despite its dense urban environment, Shinjuku also offers peaceful escapes like the Shinjuku Gyoen National Garden, providing a tranquil contrast to the city's fast-paced atmosphere.