Dunnottar Castle was originally a 12th century earth and timber ringwork fortress, founded by William the Lion. In the 14th century, Sir William Keith founded the impressive keep and courtyard fortress, when adding the five storey L-plan tower house. Standing on a cliff top plateau, the castle is defended by a deep valley and a substantial gatehouse. Over the centuries, the English and the Scottish have garrisoned the castle and during the Civil War the 'Honours' of Scotland found security here. 4 miles south-west is Fetteresso Castle and 6 miles north is Muchalls Castle. Picture © Peter Dahl