Archaeologists uncovered the fifth known Viking Age ring fortress in Denmark, which would have looked similar to this Swedish fortress reconstruction. ANTONY MCAULAY Thousand-year-old Viking fortress reveals a technologically advanced society By Michael PriceAug. 16, 2017 , 3:02 PM When archaeologists uncovered four ancient ring-shaped fortresses in Denmark in the 1930s, the find profoundly changed the way they thought about the…
