The Castle of Ariano, also known as Ariano Irpino Castle, is a historic fortress located in the town of Ariano Irpino in southern Italy. Built in the 11th century, it served as a strategic military stronghold and has undergone various renovations over the centuries. The castle features impressive stone walls and towers, offering panoramic views of the surrounding landscape. Today, the Castle of Ariano is a popular tourist attraction, showcasing its medieval architecture and rich history. Visitors can explore its grounds and learn about the castle's significance in the region, making it a valuable cultural landmark in Campania.