Home Art Literature Raids Religion Runes Settlement Ships Thing Sites Weapons Return to Main Menu Trelleborg in Trelleborg, Sweden (Trelleborgen). Image: Google Maps Inner Diameter 125 m Rampart width ? Number of Houses ? Length of Houses ? Trelleborgen is a partially reconstructed ring fortress, it is located in the town of Trelleborg, Sweden. The fort was built from turf with a wooden palisade in c. 980. Image: Heritage Daily