This stretch of windmills is one of the best-known Dutch tourist sites. Both iconic and historic, the windmills in the village of Kinderdijk have been a Unesco World Heritage Site since 1997. The Netherlands has about 1,200 windmills, though only 300 or so are still operational. Over the years they’ve played a major role in pumping sea water away from the nation's reclaimed land. Keeping water at bay is a perennial issue for the Netherlands, where much of the land is flat and below sea level.
