The windmill is the quintessential symbol of the Netherlands. In 1850, over 10,000 molens (mills) harnessed the wind to help drain lowlands across the country. Today, less than 10% remain standing while over 2,500 wind turbines generate electricity. The largest collection of mid-18th century windmills are in Kinderdijk, a village ten miles from Rotterdam. This picturesque and historic experience is a UNESCO World Heritage Site and a must-see when visiting the Netherlands.