Edins Hall Broch - Credit: Wikimedia Commons
Edin's Hall Broch (also Edinshall Broch; Odin's Hall Broch) is a 2nd-century broch near Duns in the Borders of Scotland. It is one of very few brochs found in southern Scotland.Armit, I. (2003) Towers in the North: The Brochs of Scotland. Stroud. Tempus. pp119-132. It is roughly 28 metres in diameter. Read more on Wikipedia
Source: en.wikipedia.org