Skara Brae (pronounced ) is a large stone-built Neolithic settlement,
Maeshowe (or Maes Howe) is a Neolithic chambered cairn and passage
The Ring of Brodgar (or Brogar, or Ring o' Brodgar) is a Neolithic
The surviving Standing Stones of Stenness form an impressive Neolithic
Ness of Brodgar is an archaeological site covering
The Old Man of Hoy is a 449-foot (137m) sea stack on the island of
The Neolithic Barnhouse Settlement is sited by the shore of Loch of
Unstan (or Onstan, or Onston) is a Neolithic chambered cairn located
Hackness Martello Tower and Battery is located on the island of South
The Dwarfie Stane is a megalithic chambered tomb carved out of a
The Crockness Martello Tower on Hoy, Orkney, Scotland, was built at
North Gaulton Castle is a sea stack off the western coast off the
The Needle is a 70-metre-high (230 ft) sea stack on the island of
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