Ardahan Castle is a historic fortress located in the city of Ardahan, Turkey. It was built during the Byzantine Empire and later expanded by the Seljuks and Ottomans. The castle is situated on a hill, providing a strategic view of the surrounding area and the Çoruh River. The structure features thick stone walls and several towers, showcasing the architectural styles of different periods. Today, Ardahan Castle is a popular tourist attraction, offering visitors a glimpse into the region's rich history and stunning panoramic views of the landscape.