Gamleborg

Gamleborg, a significant Viking fortress on the Danish island of Bornholm, dates back to approximately 750 CE. It was a crucial defensive structure during the Viking Age and early Middle Ages. The fortress, covering an area of 27,000 square meters, featured massive walls, moats, and ramparts for protection. Originally constructed for defense against Viking raids, it served as a refuge and administrative center for the kings of Bornholm. The fortress underwent major renovations around 1100 CE, enhancing its defensive capabilities. However, it was abandoned by 1150 CE in favor of Lilleborg, located nearby. Today, Gamleborg's ruins and the reconstructed sections from the 1100s provide valuable insights into the military architecture and historical significance of the Viking era on Bornholm.