Castles were built in the past in the British Isles to protect people from attacks. Many castles have legends associated with them, such as ghosts, wizards, kings and queens, and heroes. Windsor Castle is one of the places where Queen Elizabeth II lives and it is the biggest inhabited castle in the world. It contains treasures and paintings, and some believe it is haunted by the ghosts of past kings and queens who lived there, such as footsteps of Queen Elizabeth I being heard in the Royal Library. A fire in 1992 destroyed treasures in Windsor Castle and it closed for renovations, but has since reopened for visitors.