I never went to see Kowloon in real life but I have the fondest memories of it through the detailed renditions and special atmosphere of Shenmue II on the Sega Dreamcast.
The story takes place in 1986; you play a young Japanese man in search for the killer of his father. The whole Hong Kong experience especially, still feels very much like (time) travel.
The game is also available on steam (and on console marketplaces AFAIK):