Peveril Castle stands as one of England's earliest Norman fortresses, dramatically perched on a rocky hilltop above the village of Castleton in Derbyshire's Peak District. Built between 1066 and 1086 by William Peveril following the Norman Conquest, the castle features a prominent keep constructed by Henry II in 1176 and the remains of a curtain wall, gatehouse, and three towers. Mentioned in the Domesday survey, it served as the administrative centre for the Forest of the Peak from the 11th to 16th centuries. Visitors ascending to the castle ruins are rewarded with breathtaking panoramic views over the Hope Valley, while the site's dramatic hilltop location makes it one of England's most impressively sited medieval castles.