"Then there are these massive buildings, like the Chungking Mansions, which are basically self-contained cities—cleaner, more sanitized versions of the old, chaotic Kowloon Walled City—where you can buy almost anything for the right price."
"Kowloon Walled City was an ungoverned, densely populated settlement in Kowloon City, Hong Kong. Originally a Chinese military fort, the Walled City became an enclave after the New Territories were leased to the UK by China in 1898. By 1990, the walled city contained 50,000 residents within its 6.4-a"