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 District century. It is situated on the River Coquet, and provides a gateway to Upper Coquetdale and the Northumberland National Park. Alnwick District Alnwick was a local government district of Northumberland, England. Its council was based in Alnwick town and the district had a population of 31,029 according to the 2001 census. It was one of the most rural and sparsely populated districts in the United Kingdom, having a resident population of 32,300 in an area of 1,079.51 square kilometres, according to the 2001 census. (That is 29 persons per km² compared with the UK average of 245 persons per km².)