Tokyo Flood Prevention | Insane underground tunnel system in Japan!

Fifty metres under Tokyo lies a subterranean world — 6.4 kilometres of tunnels, water tanks and massive pillars constructed to withstand 200 tonnes of water per ...
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28 thoughts on “Tokyo Flood Prevention | Insane underground tunnel system in Japan!

  1. 4:33 These gates are actually proud engineering by the Dutch, Japanese learned these tech from studying our ways. Looks amazing still.
    11:05 These so called "levees" or "dijken" as we call in Dutch, also amazing technology the Japanese adapted quite well.

  2. Yeah and in my city we cant even handle stupid criminal groups. i guess were lucky that our stupid politics dont have to deal with something of this magnitude ;D

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