Explore the flood protection system of treasure walls in the world's No. 1 country
Normally, they are hidden beneath the road surface but when there is a flood, the flood water will push this barrier upwards, preventing the flow of water from outside fromThe world's longest automatic flood protection system
Director of the Dutch Flood and Storm Control Program Roeland Hillen said this is the perfect flood protection solution to protect areas or be affected by floods and storms.