Kuresaare Castle is a historic fortress located on Saaremaa, the largest island in Estonia. Built in the 14th century, it served as a stronghold for the Teutonic Knights and later became the residence of the local bishop. The castle features a well-preserved structure with thick walls and a distinctive round tower. Today, Kuresaare Castle is a popular tourist attraction, showcasing exhibitions about the island's history and culture. The surrounding park offers scenic views and walking paths, making it a pleasant destination for visitors interested in Estonian heritage and architecture.