- The Viking ring fortress of Trelleborg. Image Credit: CC BY-SA 3.0 Thue C. Leibrandt.
- Wikipedia. Viking ring fortress. For other uses, see Trelleborg (disambiguation). Picture taken from top of wall of Trelleborg (Slagelse).
- Borgring Viking-Age Ring Fortress: aerial view looking westwards over the E47 dual-highway (2023) by Viking-Age Ring FortressesUNESCO World Heritage.
- There are a total of seven known Viking ring fortresses at present, located in Denmark and Scania, in the southern part of modern Sweden.
- 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.
- A Viking halka kalesi veya Trelleborg tipi kale , bir tür dairesel kale Viking Çağı 'da İskandinavya'da inşa edilmiş özel bir tasarımdan.
- Based on their research, the fortress is believed to have been constructed by the infamous Viking and Danish King Harald “Bluetooth” Gormsson.
- Archaeologists in Denmark have discovered a distinctive ring-shaped Viking fortress which historians believe may have been used to launch an invasion of...
- Archaeologists in Denmark have discovered a distinctive ring-shaped Viking fortress which historians believe may have been used to launch an invasion of...