Nidzica Castle is a historic fortress located in the town of Nidzica, Poland. Built in the 14th century by the Teutonic Knights, the castle served as a defensive structure and administrative center. Its strategic position allowed it to oversee trade routes and protect the surrounding area. The castle features a mix of Gothic and Renaissance architectural styles, with thick walls and a distinctive tower. Over the years, it has undergone various renovations and restorations, making it a popular tourist attraction. Today, visitors can explore its grounds and learn about the rich history of the region.