Alnwick Castle in the period 1798–1814. The Abbot's Tower houses the Regimental Museum of the Royal Northumberland Fusiliers. An increase in public interest in the castle was generated by its use as a stand-in for the exterior and interior of Hogwarts in the "Harry Potter" films. Its appearance in the films has helped shape the public imagination regarding what castles should look like. Its condition contrasts with the vast majority of castles in the country, which are ruinous and unfit for habitation. The River Aln flows past the north side of the Castle. There is a deep ravine to the south and
Alnwick Castle principal rooms shown to the public, which were redecorated in an opulent Italianate style in the Victorian era by Luigi Canina. The current duke and his family live in the castle, but occupy only a part of it. The castle is open to the public throughout the summer. After Windsor Castle, it is the second largest inhabited castle in England. Alnwick was the tenth most-visited stately home in England according to the Historic Houses Association, with 195,504 visitors in 2006. Since World War II, parts of the castle have been used by various educational establishments: firstly, by the Newcastle upon