🇩🇪 Germany · Submerged site
Vineta – Legendary Baltic Sunken Trading City off Usedom
Early Medieval (8th–12th c. CE) · Wendish Slav / Viking / hypothesized
Baltic Atlantis — Adam of Bremen Jumne 1075, claimed sunken off Usedom/Wollin with Koserow pavement at −5 m (contested glacial till).