Lilleborg - Credit: Wikimedia Commons
Lilleborg is a ruined castle in the Almindingen forest in the centre of the Danish island of Bornholm."Lilleborg", Bornholm.net. Retrieved 30 October 2012. It is situated close to the main road from Rønne to Svaneke. Of the Danish fortresses built in the 12th century, Lilleborg most closely resembles those of Saxon architectural style. Read more on Wikipedia
Source: en.wikipedia.org