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 landscaped by Lancelot Brown ("Capability Brown") and Thomas Call in the 18th century; it is known locally as The Pastures. Nearby is the much larger Hulne Park, which contains the remains of Hulne Priory. The castle is in good repair and used for many purposes. It provides a home for the present Duke and family and offices for Northumberland Estates, which manages the Duke's extensive farming and property holdings. Alnwick's battlements are surmounted by carved figures dating from around 1300; historian Matthew Johnson notes that around this time there were several castles in northern England similarly decorated, such as Bothal,