Incredible claustrophobic footage from inside the Kowloon Walled City

The fortress-like Kowloon Walled City of Hong Kong was demolished in the early 1990s, but a German documentary crew braved the sprawl in 1989 and captured amazing footage from inside this sunlight-less patchwork metropolis.

Check out more footage from this astounding arcology here, here, and here.

[Spotted on Laughing Squid. Top photo via Doobybrain.]