Shinjuku is Tokyo's busiest district, built around Shinjuku Station, the world's busiest railway station at roughly 3.6 million daily passengers. West of the station, Nishi-Shinjuku holds Tokyo's densest cluster of skyscrapers, including the twin-towered Tokyo Metropolitan Government Building, whose 45th-floor observation decks are free to enter. Nearby, Omoide Yokocho (officially Shinjuku Nishiguchi Shotengai) is a narrow lane of small yakitori stalls. East of the station, Kabukicho's Golden Gai packs over 200 tiny bars into six alleys. This district card is separate from Shinjuku Gyoen park.
Shinjuku Station anchors the district, handling about 3.6 million passengers a day across JR, Metro, Toei, Keio, and Odakyu lines - officially the world's busiest railway station. West of it, Nishi-Shinjuku's skyscraper district began rising in the 1970s and now includes the Shinjuku Park Tower, Mode Gakuen Cocoon Tower, and the twin 202-metre towers of the Tokyo Metropolitan Government Building, whose 45th-floor observation decks are open to the public free of charge. A short walk away, Omoide Yokocho (officially Shinjuku Nishiguchi Shotengai) is a cramped lane of yakitori and kushiyaki stalls. East of the station in Kabukicho, Golden Gai's six alleys hold more than 200 shanty-style bars dating to the 1960s; most don't open until 9pm.