Bristol Castle is a historic fortress located in Bristol, England. Originally built in the 11th century, it served as a royal residence and military stronghold. The castle features a mix of architectural styles, reflecting its long history and various renovations over the centuries. Today, the site is mostly in ruins, but visitors can explore the remaining structures and learn about its significance in English history. The castle played a key role during the Civil War and has been a symbol of the city's heritage for generations.