The stone circle at Castlerigg (alt. Keswick Carles, Carles, Carsles or Castle-rig) is situated near Keswick in Cumbria, North West England. It was constructed as a part of a megalithic tradition that lasted from 3,300 to 900 BCE, during the Late Neolithic and Early Bronze Ages.
Closer look at one of the Stripple Stones on Bodmin Moor. This is a rather unique arrangement of stones in that it is part of a circle henge, i.e. the stone circle is surrounded by a ditch. Originally there were in the region of 28 stones standing, now half this many remain on the site and only 3 are standing.
Prehistoric spiral carving, Cornwall, England. Labyrinths and mazes have a history that can be traced back over 4000 years. The earliest examples are found carved on rocks in various parts of the world. Labyrinths have been a potent symbol in many cultures for thousands of years but mazes are of more recent origin, evolving from the earlier labyrinths around five hundred years ago
thk: The Ring of Brodgar is a Neolithic henge and stone circle about 6 miles north-east of Stromness on the Mainland, the largest island in Orkney, Scotland. It is part of the UNESCO World Heritage Site known as the Heart of Neolithic Orkney. Wikipedia