Walking through Nishishinjuku feels like stepping into every movie scene you've ever seen of modern Tokyo. The skyscrapers create these amazing urban canyons, especially at night when all the offices light up. While most tourists stick to the east side of Shinjuku, this area shows you where real Tokyo business life happens.
The neighborhood comes alive at dinner time when all the office workers pour into the local izakayas and ramen shops. Found some great hole-in-the-wall spots where you're likely to be the only tourist. The architecture is worth checking out too - each skyscraper seems to be competing to look more futuristic than its neighbor.
Not a must-see like some other parts of Tokyo, but definitely worth exploring if you want to see where modern Tokyo really operates.