Castle De Haar is the largest castle in the Netherlands, located near the village of Haarzuilens. Built in the late 19th century, it was designed by architect Pierre Cuypers, who also designed the Rijksmuseum in Amsterdam. The castle features a mix of Gothic and Renaissance architectural styles, surrounded by beautiful gardens and a moat. The castle is a popular tourist destination, offering guided tours that showcase its rich history and stunning interiors. Visitors can explore the various rooms, including the grand dining hall and the impressive library, while enjoying the picturesque landscape that surrounds this historic site.