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
The Alnwick Garden Estates, although the 12th Duke of Northumberland donated the 42-acre (17 ha) site and contributed £9 million towards redevelopment costs. The first garden was laid down in 1750 by the 1st Duke of Northumberland, who employed Capability Brown, the celebrated Northumberland gardener, to landscape the parkland adjoining Alnwick Museum. The 3rd Duke was a plant collector, and led a century of development at Alnwick - he brought seeds from over the world, and pineapples were raised in hothouses. In the middle of the 19th century, the 4th Duke created an Italianate garden featuring a large conservatory, and at the end