Built in 1076 on the foundations of the Roman Temple of Claudius, England’s largest surviving Norman keep is bigger than that of the Tower of London. Over the centuries it’s been a royal residence, a prison and home to the Witchfinder General. An imaginative £4-million restoration has added a cracking son et lumière which recreates lost internal structures.
Other highlights include the 'Fenwick Hoard' of Roman gold and silver jewellery, and guided tours onto the castle roof (adult/child £3/1.50, booking required).