- sott.net article/285280-Fifth-Viking-ring-…Archaeologists in Denmark have discovered a distinctive ring-shaped Viking fortress which historians believe may have been used to launch an invasion of...
- ancient-origins.net news-history-archaeology/…In 2014, archaeologists identified another impressive fortress through laser scan, which had been initially discovered in 1875 – a ring-shaped Viking fortress on...
- researchgate.net publication/353404466_Borgring_…In 2014, Borgring, near Køge, Denmark, was identified as the fifth geometrical Viking Age ring fortress in Denmark, complementing an exclusive group of...
- archaicwonder.tumblr.com post/133290265646/…There are a total of seven known Viking ring fortresses at present, located in Denmark and Scania, in the southern part of modern Sweden.
- redice.tv news/viking-ring-fortress-discovered-in…Archaeologists in Denmark have discovered a distinctive ring-shaped Viking fortress which historians believe may have been used to launch an invasion of...
- liquisearch.com viking_ring_fortressViking Ring Fortress. Trelleborg is a collective name for six Viking Age circular forts, located in Denmark and the southern part of modern Sweden.
- araniea.com incredible-viking-ring-fortress-…Based on their research, the fortress is believed to have been constructed by the infamous Viking and Danish King Harald “Bluetooth” Gormsson.
- worddisk.com wiki/Viking_ring_fortress/A Viking ring fortress, Trelleborg-type fortress, or trelleborg (pl. trelleborgs), is a type of circular fort of a special design, built in Scandinavia during the Viking Age.