🇩🇰 Denmark · Megalith
Jelling Stones
Viking Age (Jelling dynasty) · Viking Age Danes / Jelling dynasty
UNESCO Viking royal complex at Jelling — two mounds, Gorm and Harald Bluetooth runestones (965 CE) and ship outline.
🇬🇧 United Kingdom · Earthwork
Silbury Hill
Late Neolithic 2400–2300 BCE · Late Neolithic Britons (Grooved Ware)
Europe's tallest prehistoric mound – 39-m artificial hill with unknown purpose.
🇺🇸 United States · Earthwork
Poverty Point (Monumental Earthworks of Poverty Point)
Late Archaic 1700–1100 BCE (peak 1500–1200 BCE) · Poverty Point culture
Late Archaic earthwork complex (1700–1100 BCE) with six concentric C-shaped ridges (1.2 km outer diameter) and six mounds, including 22 m-high Mound A – one of largest Archaic earthworks in North…