🇺🇸 United States · Earthwork
Cahokia Woodhenge
Mississippian Emergent–Early 900–1150 CE · Mississippian (Cahokia)
Mississippian timber Stonehenge: 410 m 48-post solar calendar aligned to Monks Mound solstice.
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2 places carry this tag, across every kind and continent it appears in.
🇦🇲 Armenia · Rock art
Chalcolithic to Iron Age · Kura-Araxes, Trialeti-Vanadzor, Lchashen-Metsamor
Syunik 3300-m crater-lake plateau with >4000 black basalt petroglyphs, chariot and solar calendar boulders.
🇺🇸 United States · Earthwork
Mississippian Emergent–Early 900–1150 CE · Mississippian (Cahokia)
Mississippian timber Stonehenge: 410 m 48-post solar calendar aligned to Monks Mound solstice.