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CategoriesTimber platforms
Every place in the atlas labelled timber platforms.
🇸🇪 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.