[vonnik]

Also known as the city of darkness: http://cityofdarkness.co.uk/

William Gibson visited the city and described it in his 1997 work, Idoru:

"There was a place near an airport, Kowloon, when Hong Kong wasn't China, but there had been a mistake, a long time ago, and that place, very small, many people, it still belonged to China. So there was no law there. An outlaw place. And more and more people crowded in; they built it up, higher. No rules, just building, just people living. Police wouldn't go there. Drugs and whores and gambling. But people living, too. Factories, restaurants. A city. No laws."

[Hasknewbie]

I was lucky enough to get my hands on the first edition of City Of Darkness before it became pricey, I heartily recommend that book.

The "no laws and/or regulations in KWC" is a bit of a myth though, HK police began patrolling the place in the early 70s, plus despite its legal status it benefited from HK's infrastructure, such as postal services or the electric grid. It was lawless mostly in its number of unlicensed dentists.