Is Nottingham Castle a real place?

Yes, Nottingham Castle is a real place. It is a castle in Nottingham, England. It is located on a hill overlooking the city of Nottingham. The castle has been in existence since the 11th century and has played an important role in English history. It was used as a royal palace, a fortress, and a prison. Today, the castle is a tourist destination and is open to the public.