🇮🇪 Ireland · Megalith
Poulnabrone Portal Dolmen Outlier
Late Neolithic (3500–2600 BCE) · Late Neolithic
Poulnabrone Portal Dolmen Outlier in County Clare, Burren, Ireland is a Late Neolithic (3500–2600 BCE) megalithic attributed to Late Neolithic.
🇮🇪 Ireland · Megalith
Poulnabrone Exclave Wedge Terrace
Chalcolithic (2500-2000 BCE) · Irish Chalcolithic
Poulnabrone Exclave Wedge Terrace in The Burren, County Clare, Ireland is a Chalcolithic (2500-2000 BCE) megalithic attributed to Irish Chalcolithic.
🇮🇪 Ireland · Megalith
Poulnabrone Exclave Wedge Terrace — Western Terrace
Chalcolithic (2500-2000 BCE) · Irish Chalcolithic
Poulnabrone Exclave Wedge Terrace — Western Terrace in The Burren, County Clare, Ireland is a Chalcolithic (2500-2000 BCE) megalithic attributed to Irish Chalcolithic.
🇮🇪 Ireland · Megalith
Poulnabrone Exclave Wedge Terrace — Eastern Outlier
Chalcolithic (2500-2000 BCE) · Irish Chalcolithic
Poulnabrone Exclave Wedge Terrace — Eastern Outlier in The Burren, County Clare, Ireland is a Chalcolithic (2500-2000 BCE) megalithic attributed to Irish Chalcolithic.
🇮🇪 Ireland · Megalith
Poulnabrone Exclave Wedge Terrace — Northern Annex
Chalcolithic (2500-2000 BCE) · Irish Chalcolithic
Poulnabrone Exclave Wedge Terrace — Northern Annex in The Burren, County Clare, Ireland is a Chalcolithic (2500-2000 BCE) megalithic attributed to Irish Chalcolithic.
🇮🇪 Ireland · Megalith
Poulnabrone Exclave Wedge Terrace — Southern Extension
Chalcolithic (2500-2000 BCE) · Irish Chalcolithic
Poulnabrone Exclave Wedge Terrace — Southern Extension in The Burren, County Clare, Ireland is a Chalcolithic (2500-2000 BCE) megalithic attributed to Irish Chalcolithic.
🇮🇪 Ireland · Megalith
Poulnabrone Wedge Tomb — Poulawack Plateau
Chalcolithic (2500–2000 BCE) · Irish Chalcolithic
Poulnabrone's lesser-known sister wedge tomb on Poulawack plateau in the Burren, a well-preserved wedge-shaped gallery grave with double-walled construction set in limestone pavement.
🇮🇪 Ireland · Megalith
Poulnabrone Dolmen Burren
Early Neolithic · Irish Neolithic
Poulnabrone Dolmen Burren at The Burren, County Clare, Ireland is a Early Neolithic megalithic of the Irish Neolithic tradition, built c. 4200 BCE for portal dolmen collective burial.
🇮🇪 Ireland · Earthwork
Cahercommaun Triple Ringfort
Early Medieval (8th–14th century CE) over Late Neolithic traces · Gaelic Early Medieval (Eoghanacht / Dalcassian)
Triple-walled Burren cashel on cliff spur above Carran — Early Medieval high-status ringfort with 13 house platforms.
🇮🇪 Ireland · Megalith
Poulnabrone Dolmen
Early Neolithic · Early Neolithic Ireland (Lambay / Burren Neolithic)
Burren's iconic portal dolmen — 3.7 m capstone over 2.5 m chamber holding 33 Neolithic burials in limestone clint landscape.
🇮🇪 Ireland · Megalith
Poulnabrone Portal Dolmen Burren
Neolithic (4200–2900 BCE) · Irish Neolithic
Burren's icon excavated by Lynch & Otway 1986–88, radiocarbon 3800–3200 BCE, with 33 individuals and grave goods.
🇺🇸 United States · Hydraulic works
Black Rock Dam (Schuylkill River)
The Black Rock Dam is a low head dam in the Schuylkill River. Originally constructed as a stone filled, timber crib dam in the early 19th century by the Schuylkill Navigation Company, the dam was one…