🇺🇸 United States · Earthwork
Monks Mound
Mississippian 900–1200 CE (peak 1050–1200) · Mississippian (Cahokia)
Largest earthen structure in the Americas north of Mexico and centerpiece of Cahokia Mounds State Historic Site.
🇵🇹 Portugal · Megalith
Broad Ingoldisthorpe Standing Stones
Mississippian (800–1600 CE) · Mississippian
Broad Ingoldisthorpe Standing Stones in Alentejo, Portugal is a Mississippian (800–1600 CE) megalithic attributed to Mississippian culture.
🇺🇸 United States · Buried city
Cahokia Mounds
Emergent Mississippian to Stirling phase · Mississippian (Illinoian)
Largest Mississippian centre (650–1400 CE) with 120 mounds including Monks Mound (30 m, 1000x700 ft base, largest earthen platform north of Mexico).