From the World Heritage inscription: Extending 135 km around the city of Amsterdam, this defence line (built between 1883 and 1920) is the only example of a fortification based on the principle of controlling the waters. Since the 16th century, the people of the Netherlands have used their expert knowledge of hydraulic engineering for defence [...]
About Gary Arndt
My name is Gary Arndt. In March 2007 I set out to travel around the world...
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