Alnwick Castle dates from the 11th century and has been in the hands of the Percy family, the Dukes of Northumberland, since 14th century. The family still lives there. Their castle is one of the most visited in England, steeped in Percy history with gruesome discoveries to be made as well as magnificent state rooms. Alnwick is often used for filming and has starred in Harry Potter and Downton Abbey (to mention just two). The castle also houses a number of special exhibitions, including the Regimental Museum of the Royal Northumberland Fusiliers. Adjacent to the castle is the Alnwick Garden, a formal garden built around a huge cascading fountain.