INS, which stands for "into nothing serious", is a six-story building in the middle of serene Fuxing Park that houses nothing but venues of diversion: a load of commercial bars and nightclubs, a KTV, and a few restaurants for good measure. It's basically an amusement park for nightlife, complete with fast passes, carnival type attractions, various performers and NPCs, and a ton of drunk people. It's... a lot, and something to experience at least once. A night out entails riding the elevators and escalators floor by floor, going to everything from a bougey celeb-frequented hip hop club, to a techno club, to a student dance bar, to an upscale cocktails place. As of 2026, it is the main commercial clubbing destination in Shanghai, and it's very busy every weekend and generally busy seven days a week. Note that you will have to pay admission to get in the building, though there are various promoters and ticketing arrangements that are beyond the scope of this description. The park outside is one of the best people watching spots in the city.