Beijing's Underground.

Hmmm,

Very very interesting! I figured the Chinese had some type of bunker program, but nothing of this size.

It makes me wonder about the bunkers we don't know about.

The tunnels, built from 1969 to 1979 by more than 300,000 local citizens and even school children, wind for over 30 kilometers and cover an area of 85 square kilometers eight to eighteen meters under the surface. It includes around a thousand anti-air raid structures.

www.china.org.cn...