A "Molen" is a Dutch word for a windmill, a structure that converts wind energy into mechanical power. Traditionally, these mills were used for various purposes, such as grinding grain, pumping water, and sawing wood. They are iconic symbols of the Netherlands and are often found in picturesque landscapes. Molen designs vary, but they typically feature large sails that catch the wind. The most famous type is the Hollander mill, known for its distinctive shape and efficiency. Today, many molens are preserved as historical sites, attracting tourists and serving as reminders of the country's rich agricultural heritage.