Shinjuku Station in Tokyo, officially recognized as the world's busiest railway station, features a complex web of 53 platforms as of 2026. This massive count is spread across several interconnected stations operated by five different companies: JR East, Odakyu, Keio, Tokyo Metro, and Toei Subway. The JR East portion alone contains 16 platforms. The station is so large and complex—with over 200 exits—that even locals often find it disorienting. A multi-billion yen redevelopment project is currently underway (scheduled for completion in 2046) to streamline the layout, but the sheer number of platforms remains a testament to the station's role in handling over 3.5 million passengers every single day.