Brough of Birsay Lighthouse
The unmanned Brough of Birsay Lighthouse lighthouse was built in 1925 by David A Stevenson. It is located on the Brough of Birsay, an uninhabited tidal island off the northwest coast of Mainland in Orkney, Scotland, in the parish of Birsay. The island can be reached on foot by a causeway when the tide is low. The lighthouse, originally gas-powered, was converted to solar power in 2002.