Search places, or jump to a section
CategoriesLake fortresses
Every place in the atlas labelled lake fortresses.
🇸🇪 Sweden · Fortress
Medieval Gotland 12th c (1132) early Christian–Gotlandic Ting · Medieval Gotlandic chieftains (Gutar Christian early)
🇩🇪 Germany · Fortress
Early Medieval Slavic 900–1180 (Circipanian Obotrite lake island) · Slavic Circipanian (Obotrite confederacy Tollense lake island)
🇸🇪 Sweden · Fortress
Medieval Gotland 12th c (1132) early Christian–Gotlandic Ting · Medieval Gotlandic chieftains (Gutar Christian early)
Bulverket — unique Scandinavian lake pile fortress (c.1132 CE dendro-dated, Medieval 12th c) on Tingstäde Träsk lake, central Gotland, 18 km northeast Visby.
🇩🇪 Germany · Fortress
Early Medieval Slavic 900–1180 (Circipanian Obotrite lake island) · Slavic Circipanian (Obotrite confederacy Tollense lake island)
Behren-Lübchin — Slavic lake island fortress (9th–12th c, Feldberg–Fresendorf phase, peak 10th–12th c Circipanian) on Großer See lake island 12 km southeast Teterow, Mecklenburg Tollense–Peene lake…
🇸🇪 Sweden · Earthwork
Early Middle Ages (c.1120–1150 CE) · Medieval Gotlandic
Massive 1130s timber platform fortress in Tingstäde Träsk lake, Gotland: 170 × 170 m square bulwark of ca. 25,000 pine logs forming a square grid with causeway to shore.