Kowloon Walled City
At one time – the most densely populated place on Earth
Kowloon Walled City (Chinese: 九龍城寨) known colloquially as the “city of darkness” was an extremely densely populated enclave of China that existed within the boundaries of Kowloon City in Hong Kong.
It began life as a Chinese military fort during the Qing Dynasty, but its moder…
