lighthouse. The lighthouse was built in 1900, in memorial to Scottish novelist William Black. References External links Official website Dark Isle Photos 360° image outside the castle History of Duart Castle Castles in Argyll and Bute Category A listed buildings in Argyll and Bute Listed castles in Scotland Buildings and structures on the Isle of Mull Clan MacDougall Clan Maclean Historic house museums in Argyll and Bute Country houses in Argyll and Bute Historic Marine Protected Areas of Scotland