Kowloon Walled City: Remembering Hong Kong’s Chaotic City of Darkness

It's been 20 years (to the month) since Kowloon Walled City was demolished, but amazingly, it remains one of the most dense structures ever built. As many as 33,000 people crammed into the seven-acre plot, known in Cantonese as "the city of darkness," before they were relocated in 1993