Kowloon Cross-Section ~ Amazing Illustration!

io9 spots an amazing Japanese cross-section illustration of the Kowloon Walled City, Hong Kong! Here's just a cross-section detail... And here's some of the whole thing! Click to enlarge... P.S. Here's the Walled City just before it was finally demolished... And thanks to Visual News for pointing to this German documentary about the Walled City.