Constructed from local red sandstone, Kirkwall's centrepiece, dating from the early 12th century, is among Scotland's most interesting cathedrals. The powerful atmosphere of an ancient faith pervades the impressive interior. Lyrical and melodramatic epitaphs of the dead line the walls and emphasise the serious business of 17th- and 18th-century bereavement. Tours of the upper level (£8) run on Tuesday and Thursday; phone to book.

　　Earl Rognvald Brusason commissioned the cathedral in 1137 in the name of his martyred uncle, Magnus Erlendsson, who was killed by Earl Hakon Paulsson on Egilsay in 1117. Magnus' remains are entombed in an interior pillar. Another notable interment is that of the Arctic explorer John Rae.