Northern Europes biggest castle ruin is situated on Northern Bornholm and is the youngest of the seven castles on Bornholm.
This little castle is the next youngest on Bornholm and is from around 1100 AC
The fortress is from around 750 AC and is situated only about 700 metres from Lilleborg
The ring fortress is situated on Southern Bornholm and assumingly from around year 0 AC
The castle is said to be from around year 200 AC
The remainders of this castle are situated in the southeasterly part of Rutsker Højlyng, at the bicycle trail, and the fortress is assumingly from the Iron Age.
This castle was situated at the long and slim Borgedalsø, and is also from the Iron Age
