Brough of Birsay
Cut off at high tide, Brough of Birsay stands at the main island's northwestern tip. There are important remains of Pictish and Norse settlements here; the oldest material comes from Pictish dwellings and ironwork. The Vikings, who lived on Brough in the 10C and 11C have left a group of farmhouses. Norse earls of the Orkneys made Birsay one of the principal settlements of these islands.