🇮🇪 Ireland · Megalith
Knowth
Neolithic · Boyne Valley Neolithic
Largest passage tomb complex in Brú na Bóinne: Great Mound with two passages (east-west) and 18 satellite tombs.
200 places · page 3 of 9
🇮🇪 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 · Ancient village
Derryoghill Trackway – Edercloon Wooden Platform (Longford)
Early Medieval (Early Christian Ireland) · Early Medieval Irish (Uí Briúin)
850-m early medieval alder causeway and 12 x 8 m platform (680–800 CE) — bog-edge iron working.
🇮🇪 Ireland · Temple complex
Clonmacnoise
Early Medieval (544–1552 CE) · Early Christian Gaelic (Columban tradition)
Great early monastery at Shannon-Esker crossing (544 CE) with cathedral, two round towers, three high crosses and 3,000 graves.
🇮🇪 Ireland · Ancient village
Clonbrin Causey (Edercloon) – Longford/Offaly Bog Road
Late Iron Age (La Tène) · Irish Iron Age (Ulster–Connacht)
1.5-km Iron Age oak plank causeway (120 BCE) — Edercloon's wheeled transport togher.
🇮🇪 Ireland · Megalith
Loughcrew Cairn L West Chamber — Northern Annex
Middle Neolithic (3600-3000 BCE) · Irish Neolithic
Loughcrew Cairn L West Chamber — Northern Annex in County Meath, Ireland is a Middle Neolithic (3600-3000 BCE) megalithic attributed to Irish Neolithic.
🇮🇪 Ireland · Megalith
Carrowmore Dolmen Outlier 12 — Northern Annex
Early Neolithic (4000-3000 BCE) · Irish Neolithic
Carrowmore Dolmen Outlier 12 — Northern Annex in County Sligo, Ireland is a Early Neolithic (4000-3000 BCE) megalithic attributed to Irish Neolithic.
🇮🇪 Ireland · Megalith
Carrowmore Dolmen Outlier 12 — Western Terrace
Early Neolithic (4000-3000 BCE) · Irish Neolithic
Carrowmore Dolmen Outlier 12 — Western Terrace in County Sligo, Ireland is a Early Neolithic (4000-3000 BCE) megalithic attributed to Irish Neolithic.
🇮🇪 Ireland · Megalith
Brú na Bóinne Satellite Cairn Z
Late Neolithic (3200-2900 BCE) · Irish Neolithic
Brú na Bóinne Satellite Cairn Z in County Meath, Ireland is a Late Neolithic (3200-2900 BCE) megalithic attributed to Irish Neolithic.
🇮🇪 Ireland · Earthwork
Hill of Tara
Neolithic to Early Medieval (c.3400 BCE–1200 CE) · Neolithic → Iron Age La Tène → Early Medieval Gaelic
Ireland's paramount ceremonial landscape (142 ha) — Neolithic tomb, Lia Fáil kingship stone and Iron Age royal enclosure complex.
🇮🇪 Ireland · Megalith
Fourknocks Passage Tomb
Neolithic (c.3200–2800 BCE) · Boyne Valley Passage Tomb tradition
Meath passage tomb with wide cruciform chamber, timber-roofed instead of cairn, and profuse engraved art including anthropomorphs.
🇮🇪 Ireland · Earthwork
Grianan of Aileach
Iron Age to Early Medieval (c.1000 BCE–1100 CE) · Iron Age Gaelic → Early Medieval Uí Néill
Donegal hilltop royal cashel (23.5 m diameter) on Greenan Mountain — northern Uí Néill kingship inauguration fort.
🇮🇪 Ireland · Submerged site
Brasil Island (Second Brasil) – Phantom South of Hy-Brasil
Portolan phantom (1325–1450) · Catalan–Italian cartography
Southern Brasil rock phantom at 51°N 16°W – second Brasil duplication south of Hy-Brasil, Porcupine plain.
🇮🇪 Ireland · Earthwork
Dún Aonghasa
Late Bronze Age to Early Medieval (c.1100 BCE–800 CE) · Atlantic Iron Age / Early Medieval Gaelic
Cliff-edge triple stone fort on Inishmore (6 ha) with massive chevaux-de-frise of jagged limestone — Ireland's most dramatic hillfort.
🇮🇪 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
Knockroe Passage Tomb
Neolithic (c.3200–2800 BCE) · Boyne Valley Passage Tomb tradition
Kilkenny dual-passage tomb with lavish megalithic art, aligned to both midwinter sunrise and sunset.
🇮🇪 Ireland · Earthwork
Dun Aonghasa Aran Fort
Bronze Age to Iron Age · Irish Atlantic Bronze Age
Dun Aonghasa Aran Fort at Galway, Aran Islands, Ireland is a Bronze Age to Iron Age earthwork of the Irish Atlantic Bronze Age tradition, built c.
🇮🇪 Ireland · Ancient city
Hill of Tara Royal Enclosure Meath
Neolithic to Medieval · Irish Celtic
Hill of Tara Royal Enclosure Meath at Meath, Brega, Ireland is a Neolithic to Medieval ancient city of the Irish Celtic tradition, built c. 3200 BCE for royal capital with mound of hostages 15 m.
🇮🇪 Ireland · Megalith
Dowth Passage Tomb Brugh na Boinne
Neolithic · Brú na Bóinne Neolithic
Dowth Passage Tomb Brugh na Boinne at Meath, Brú na Bóinne, Ireland is a Neolithic megalithic of the Brú na Bóinne Neolithic tradition, built c. 3200 BCE for 85 m mound 2 passages winter sunset.
🇮🇪 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 · Megalith
Creevykeel Court Tomb
Early Neolithic · Court Tomb tradition (Western Neolithic Ireland)
55.5 m court tomb on Sligo coast — 13×10 m oval court to twin gallery, best preserved in northwest.
🇮🇪 Ireland · Pyramid
Step Pyramid of Northfield Bal
Byzantine (330–1453 CE) · Byzantine
Step Pyramid of Northfield Bal in County Kerry, Ireland is a Byzantine (330–1453 CE) pyramid attributed to Byzantine culture.
🇮🇪 Ireland · Megalith
Kilclooney Portal Tombs
Middle Neolithic · Irish Portal Tomb tradition
Two portal tombs and court tomb at Kilclooney More, Ardara, capstone 30 tons, c.3500 BCE.
🇮🇪 Ireland · Megalith
Glebe Cairn — Cong
Early Neolithic (3700–3500 BCE) · Irish Court Tomb builders
Glebe court tomb near Cong on the Mayo-Galway border, a classic western Severn-Cotswold variant with semi-circular court leading to segmented gallery, set in drumlin pasture now partly overgrown.