Yesterday we took a tour on the island Öland just east of Kalmar. There are several ancient forts, many of the dates to ca 400-550 BC though some of the has been used later on as well. We visited the fort Ismantorps borg that is speciall in the way that a lot house grounds are visable.
We also visited Sandby borg. There are diffrences, Sanbyborg ius situated by the ocean and there are no visable remains of houses. But the form is more or less the same – it’s a round structure on flat land.