The Castle of Cuéllar is a historic fortress located in the town of Cuéllar, in the province of Segovia, Spain. Built in the 15th century, it features a mix of Gothic and Mudejar architectural styles. The castle served as a defensive structure and residence for the noble family of Cuéllar, playing a significant role in the region's history. Today, the castle is a popular tourist attraction, offering guided tours that showcase its impressive towers, walls, and interior rooms. Visitors can learn about the castle's history and its connection to the Spanish nobility and medieval warfare.