🇩🇪 Germany · Earthwork
Heuneburg Hillfort Upper Danube
Hallstatt (600–400 BCE) · Hallstatt Celtic princely seat
Danube's Heuneburg excavated by Kimmig 1950–, mudbrick Mediterranean-style wall unique north of Alps, rich tumuli like Hohmichele nearby.
🇫🇷 France · Archaeological wonder
Enez Krno Bog Causeway (Île aux Moines–Medreac Moor, Brittany)
Hallstatt C (Iron Age I Armorican) · Armorican Hallstatt (Brittany enclos community)
Armorican bog causeway to islet settlement in Enez Krno mire: 52-m Iron Age plank–hurdlehybrid (620 BCE).
🇩🇪 Germany · Archaeological wonder
Hüetberg (Hüttemoor) Plankway & Linear Track (Schleswig Bog Causeway)
Hallstatt Late to Early La Tène · Northern German urnfield community
Hallstatt plank causeway in Huetberg moor 8 km east of Eckernförde: 68 m split-oak on birch sleepers (612 BCE).
🇵🇱 Poland · Ancient village
Biskupin Iron Age Lake Fort
Early Iron Age, Lusatian culture Hallstatt C · Lusatian (Lausitz) culture Hallstatt-period farmers
740 BCE Lusatian lake-fort—106 identical street-grid houses on Lake Biskupin islet.
🇫🇷 France · Earthwork
Mont Lassois — Vix Princely Tomb Hillfort
Hallstatt D (550–450 BCE) · Hallstatt Celtic (Vix princess)
Châtillonnais hillfort famous for Vix princess tomb 1953, largest Greek bronze krater (1100 L), gold torc 480 g, excavated by Joffroy.