Hidden place · Kasukabe, Japan
Metropolitan Area Outer Underground Discharge Channel
This enormous underground flood-control system is known as G-CANs. Its centrepiece is a huge tank supported by dozens of pillars, and guided tours are offered…
Hidden place · Kasukabe, Japan
This enormous underground flood-control system is known as G-CANs. Its centrepiece is a huge tank supported by dozens of pillars, and guided tours are offered…
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