Haltadans

Haltadans - Credit: Wikimedia Commons

Haltadans, also known as Fairy Ring or Haltadans stone circle, is a stone circle on the island of Fetlar in Shetland, Scotland. This site is a ring of 38 stones, of which 22 are still fixed in the soil, and it is in diameter. Inside this is an earthen ring in diameter, with a gap in the southwest side. In the center of the rings are two rectangular pillars. Read more on Wikipedia

type: historic site
date from: During the Neolithic Period

Source: en.wikipedia.org