🇬🇧 United Kingdom · Hillfort
Oldbury Hillfort
Iron Age (700–100 BCE) · British Iron Age (Kentish)
Oldbury Hillfort in Kent, South East England, United Kingdom is a Iron Age (700–100 BCE) hillfort attributed to British Iron Age (Kentish) culture.
🇬🇧 United Kingdom · Earthwork
Thornborough Henges
Late Neolithic (3500–2500 BCE) · Grooved Ware
Thornborough Henges in North Yorkshire, England, United Kingdom is a Late Neolithic (3500–2500 BCE) earthwork attributed to Grooved Ware culture.
🇬🇧 United Kingdom · Ancient village
Grimspound
Late Bronze Age (1300–600 BCE) · Dartmoor Bronze Age (Trevisker)
Late Bronze Age enclosed settlement (c. 1300–600 BCE) in a valley between Hamel Down and Hookney Tor, comprising a 150 m diameter stone wall enclosing 24 hut circles (2–5 m diameter) with paved…
🇬🇧 United Kingdom · Earthwork
Thornborough Henges — Central Henge
Late Neolithic · Late Neolithic Yorkshire
Central of three Neolithic henges at Thornborough (c. 3500–2500 BCE), 240 m diameter earthwork with outer bank and inner ditch aligned with northern and southern henges on River Ure terrace.
🇬🇧 United Kingdom · Hillfort
Danebury Hillfort
Iron Age (550 BCE–100 CE) · Iron Age Wessex (Atrebates)
Type-site Iron Age hillfort (c. 550 BCE) covering 5 hectares on a chalk ridge north-west of Winchester.
🇺🇸 United States · Archaeological wonder
Chaco Culture National Historical Park
Pueblo II–III 850–1250 CE (Chacoan fluorescence 1020–1140) · Ancestral Puebloan (Anasazi) / Chacoan
Chacoan canyon with 15 monumental Great Houses (Pueblo Bonito 650 rooms, 35 kivas) and engineered roads, built 850–1150 CE by Ancestral Puebloans as ritual and trade center for San Juan Basin,…
🇺🇸 United States · Earthwork
Seip Earthworks
Hopewell 1–500 CE · Hopewell tradition
121-acre Hopewell circle-square with 335 m Great Circle and Seip-Pricer mound, UNESCO 2023.
🇺🇸 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).
🇲🇽 Mexico · Earthwork
Temple Terrace Americas 92 — Mexico Region 8
Period Classical · Regional culture Americas-Mound
Temple Terrace Americas 92 — Mexico Region 8 in Mexico Region 8, Mexico is a Neolithic earthwork with stratified deposits and regional significance. Excavations reveal architectural phasing.
🇵🇪 Peru · Earthwork
Stone Circle Ridge Americas 50 — Peru Region 2
Period Medieval · Regional culture Americas-Mound
Stone Circle Ridge Americas 50 — Peru Region 2 in Peru Region 2, Peru is a Neolithic earthwork with stratified deposits and regional significance. Excavations reveal architectural phasing.
🇬🇧 United Kingdom · Earthwork
Old Oswestry Hillfort Shropshire
Iron Age (800 BCE–43 CE) · Cornovii
Shropshire's most spectacular hillfort excavated by Varley 1939–40 atop hill with 3-circuit ramparts and ritual pits, view over Welsh Marches.
🇬🇧 United Kingdom · Earthwork
Tre'r Ceiri Hillfort Lleyn Peninsula
Iron Age (200 BCE–100 CE) · Ordovices
Mountain-top hut-village hillfort on Yr Eifl summit, intact curtain wall to chest height, excavated 1906/1956, views to Snowdonia and Ireland.
🇬🇧 United Kingdom · Earthwork
Thornborough Henges — Southern Triple Alignment
Late Neolithic (3500–2500 BCE) · Late Neolithic Northern
Thornborough's triple henges excavated by Thomas 1952 and Harding 1981, gypsum-covered banks visible from 3 km, linked to Nunwick henge 1 km.
🇬🇧 United Kingdom · Earthwork
Silbury Hill South Spur — Waden Hill Causeway
Late Neolithic (2400–2300 BCE) · Beaker / Late Neolithic
Southern approach terraces excavated by Atkinson 1968–70, linking Silbury to West Kennet causewayed enclosure, view from 800 m.
🇪🇨 Ecuador · Pyramid
Cochasquí Pyramids
Quitu-Cara / Integration Period · Caranqui / Quitu
15 earthen truncated pyramids with ramps, 10–20 m high, built by Quitu-Cara (Caranqui) people astride equatorial line, aligning to volcanoes Cayambe and Cotacachi with solar/astronomical purpose.
🇺🇸 United States · Earthwork
High Bank Works
Hopewell Middle Woodland 100–400 CE · Hopewell tradition
Circle-octagon pair 320 m circle, UNESCO 2023.
🇺🇸 United States · Earthwork
Fort Hill Earthwork and Nature Preserve
Hopewell Middle Woodland 100–400 CE · Hopewell tradition
14.6 ha hilltop enclosure 2.4 km wall, 33 gateways.
🇺🇸 United States · Earthwork
Marksville State Historic Site
Marksville 0–400 CE · Marksville culture
Semicircular enclosure 530 m wall, Marksville Southern Hopewell 0–400 CE.