The Castle of Winchester is a historic fortress located in the city of Winchester, England. Originally built in the 11th century, it served as a royal palace and military stronghold. The castle features impressive stone walls and a large keep, which was once the tallest building in England. Throughout its history, the castle has played a significant role in English politics and governance. It was the site of important events, including the signing of the Magna Carta in 1215. Today, the castle remains a popular tourist attraction, showcasing its rich history and architectural significance.