The Netherlands has over 1,000 windmills. What is the function of windmills? They serve various purposes, but perhaps the most important one is draining water from low-lying areas and transporting it beyond river dikes, making the soil suitable for cultivation. In the Kinderdijk windmill complex, located southeast of Amsterdam, there are a total of nineteen windmills, with one or two of them still being used for drainage. The image depicts one of them.