Northumberland's most dramatic castle was built around a powerful 11th-century Norman keep by Henry II. The castle played a key role in the border wars of the 13th and 14th centuries, and in 1464 was the first English castle to fall during the Wars of the Roses. It was restored in the 19th century by the great industrialist Lord Armstrong, and is still home to the Armstrong family.

Its name is a derivative of Bebbanburgh, after the wife of Anglo-Saxon ruler Aedelfrip, whose fortified home occupied this basalt outcrop 500 years earlier. Antique furniture, suits of armour, priceless ceramics and artworks cram the castle's rooms and chambers, but top billing goes to the neo-Gothic King's Hall with wood panelling, leaded windows and hefty beams supporting the roof.