In the Netherlands’ South Holland province, these quaint, meticulously preserved 18th-century windmills stand guard over the pastoral plains of Kinderdijk http://on.natgeo.com/2Ic0yhN

In the Netherlands’ South Holland province, these quaint, meticulously preserved 18th-century windmills stand guard over the pastoral plains of Kinderdijk http://on.natgeo.com/2Ic0yhN 

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