A Viking ring fortress, Trelleborg-type fortress, or trelleborg, is a type of circular fort of a special design, built in Scandinavia during the Viking Age. These fortresses have a strictly circular s
Aerial view of the Viking ring fortress of Trelleborg, near Slagelse in Denmark. This was the first discovered Viking ring fortress, and the geometry is clearly visible.
Aerial view of the Viking ring fortress of Aggersborg. The similarity in design with Trelleborg near Slagelse, is clearly evident.
Recreation of a typical building at Fyrkat
Fyrkat is a former Viking ring castle in Denmark, dating from c. 980 AD. It is located near the town of Hobro, some distance from the present end of the Mariager Fjord in Northern Jutland. The fortres
Viking ring fortress
…Borgring near Køge, Denmark. Fyrkat near Hobro, Denmark. Nonnebakken in Odense, Denmark…
Reconstruction of a Viking house
View of Viking Center Fyrkat.
Fyrkat vinkingeborgen.Panorama.ajb