Discover Denmark's Viking Age Ring-Shaped Fortresses

Discover the five ring-shaped Viking fortresses that were built during the early Middle Ages in Denmark as either trading posts or military bases.

Nonnebakken - Odenses skjulte ringborg

Borgring, Vikingeborgen ved Køge

Learn About Viking Life at the Trelleborg Museum Slagelse, Denmark - oregon girl around the world

In the Footsteps of the Vikings: East Denmark

The 7 Viking Ring Forts - Trelleborg

Discover Denmark's Viking Age Ring-Shaped Fortresses

PDF) Borgring: the discovery of a Viking Age ring fortress

Viking 'ring fortress' discovered in Denmark may have been used for invasion of England in 1013

Viking-Age Aggersborg - Medieval Histories

Archaeologists in Denmark Have Unearthed a 10th-Century Viking Hall Deemed to Be the Largest Discovery of Its Kind in a Decade

5 Danish ring fortresses were recently named world heritage by UNESCO

Danish Viking fortresses were designed to fend off other Vikings

Incredible Viking Fortresses in Pictures

25 Fortress Of Trelleborg Stock Photos, High-Res Pictures, and Images - Getty Images

Harald Bluetooth's palisades: Majestic Viking Age timberworks constructed more than 1,000 years ago