Brough of Birsay Sheep 2 – Brough of Birsay Lighthouse · Brough Head · Orkney Isles · Scotland (Pos.: 59°08.214'N 3°20.363'W); built in 1925 by David A. Stevenson; White castellated tower 11 metres high; Rang 18 nm; Since 2002 it has been powered by solar power with backup from 4 wind turbines.