Shinjuku railway station is a major transport hub located in Tokyo, which is the world capital of Japan. It is one of the busiest railway stations in the world, handling over 3.5 million passengers daily. The station serves as a gateway to the city's various shopping, entertainment, and business districts, making it an important transportation center for commuters and tourists alike. It is also a hub for local and regional trains, as well as the Shinkansen bullet train, providing access to cities across Japan.