I’ve been always fascinated by the idea of Kowloon. So I was happy to see there is a book on it and a web site to go with the book, here: Home | City of Darkness
It no longer exists, but while it did, it provide a life for people far from what many others live. It no doubt provided inspiration for late 20th century science fiction authors too.
You can read more about it here.
(Image By Ian Lambot found in the book City of Darkness – Life in Kowloon Walled City)
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