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Tokyo's Underground Water World

This is the G-Cans project (a.k.a. Shutoken Gaikaku Housui Ro, or the Metropolitan Area Outer Underground Discharge Channel) - the largest storm drain on earth. It was built by the Japanese government to protect the city from torrential rainfall, floods, monsoons and tsunamis. Tokyo, you're doing it right.

Itsmefromthecar 11 years ago