The Sichuan Restaurant Hiding Behind an Unmarked Door on Wukang Road, ShanghaiIf you’ve walked down Wukang Road (武康路) more than once, you already know the drill: plane trees overhead, a camera in every third hand, and a lineup of cafes that all start to blur together after a while. What most visitors walk right past, though, is a second-floor Sichuan restaurant with no street-level sign at all —..