Alnwick Castle is a Norman fortress whose construction began around 1096 and later became the seat of the Percy family when Henry Percy purchased and expanded it in 1309. As the home of the Dukes of Northumberland, it evolved from a border stronghold into a family residence and today welcomes visitors to explore its medieval walls and sweeping lawns. The grounds blend history with cinematic fame; manicured lawns, ancient towers and outer walls have doubled as Hogwarts’ exterior in the early Harry Potter films. Visitors can wander through courtyards, embattled walls and the wide green bailey while soaking up views over the River Aln. Alnwick Castle remains one of Britain’s most visited castles, offering a mix of heritage tours, broomstick lessons and film talks.