Knaresborough Castle is a historic fortress located in the town of Knaresborough, North Yorkshire, England. Built in the 12th century, it was originally constructed by David I of Scotland and later expanded by the Normans. The castle played a significant role in various conflicts, including the English Civil War, and has since become a popular tourist attraction. Today, visitors can explore the castle's ruins and enjoy stunning views of the surrounding area, including the River Nidd. The site is managed by English Heritage, which provides information about its history and significance. Knaresborough Castle remains a symbol of the town's rich heritage.