🇮🇪 Ireland · Earthwork
Corlea Trackway
Iron Age, Late La Tene 148 BCE · Late Iron Age La Tene Ireland
147 BCE Iron Age oak plank highway (3.2 m wide, 1.6 km) across Corlea Bog, largest European timber road built in one year.
🇮🇪 Ireland · Archaeological wonder
Corduff Bog Trackway C (Corduff–Eglish Late Bronze Age Causeway)
Late Bronze Age (Roscommon horizon) · Irish dryland-bog community
Late Bronze Age oak plank boardwalk (82 m, 1.4 m wide) across fen–raised bog transition at Monaghan.
🇮🇪 Ireland · Archaeological wonder
Corlea Bog Trackway Eastern Extension (Roscommon)
Iron Age (La Tène B / Gaelic Ireland) · Gaelic Iron Age Ireland
Eastern continuation (48 m asl, 53°37′N 07°50′W 53.62,-7.84 Cloonbreany 2 Cartron Rd N39 XT18) of the Iron Age Corlea Trackway (148 BC precise dendro of 18-m preserved hall, 148 BC autumn fell) bog…
🇮🇪 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 · Megalith
Loughcrew Cairn L West Chamber — Southern Extension
Middle Neolithic (3600-3000 BCE) · Irish Neolithic
Loughcrew Cairn L West Chamber — Southern Extension in County Meath, Ireland is a Middle Neolithic (3600-3000 BCE) megalithic attributed to Irish Neolithic.
🇮🇪 Ireland · Megalith
Brú na Bóinne Satellite Cairn Z — Southern Extension
Late Neolithic (3200-2900 BCE) · Irish Neolithic
Brú na Bóinne Satellite Cairn Z — Southern Extension in County Meath, Ireland is a Late Neolithic (3200-2900 BCE) megalithic attributed to Irish Neolithic.
🇮🇪 Ireland · Megalith
Brú na Bóinne Satellite Cairn Z — Western Terrace
Late Neolithic (3200-2900 BCE) · Irish Neolithic
Brú na Bóinne Satellite Cairn Z — Western Terrace in County Meath, Ireland is a Late Neolithic (3200-2900 BCE) megalithic attributed to Irish Neolithic.
🇮🇪 Ireland · Megalith
Loughcrew Cairn L West Chamber — Western Terrace
Middle Neolithic (3600-3000 BCE) · Irish Neolithic
Loughcrew Cairn L West Chamber — Western Terrace in County Meath, Ireland is a Middle Neolithic (3600-3000 BCE) megalithic attributed to Irish Neolithic.
🇮🇪 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
Brú na Bóinne Satellite Cairn Z — Eastern Outlier
Late Neolithic (3200-2900 BCE) · Irish Neolithic
Brú na Bóinne Satellite Cairn Z — Eastern Outlier in County Meath, Ireland is a Late Neolithic (3200-2900 BCE) megalithic attributed to Irish Neolithic.
🇮🇪 Ireland · Megalith
Carrowmore Dolmen Outlier 12 — Southern Extension
Early Neolithic (4000-3000 BCE) · Irish Neolithic
Carrowmore Dolmen Outlier 12 — Southern Extension in County Sligo, Ireland is a Early Neolithic (4000-3000 BCE) megalithic attributed to Irish Neolithic.
🇮🇪 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
Loughcrew Cairn L West Chamber
Middle Neolithic (3600-3000 BCE) · Irish Neolithic
Loughcrew Cairn L West Chamber in County Meath, Ireland is a Middle Neolithic (3600-3000 BCE) megalithic attributed to Irish Neolithic.
🇮🇪 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
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 · Megalith
Lough Gur Stone Circle (Grange)
Late Neolithic – Early Bronze Age (c.2500–2000 BCE) · Late Neolithic / Chalcolithic Limerick
Ireland's largest stone circle (46 m, 113 stones) — embanked, contiguous orthostats on Lough Gur shore.
🇮🇪 Ireland · Megalith
Carrowmore — Listoghil Central Tomb
Middle Neolithic – Bronze Age · Carrowmore passage/boulder tradition (early)
Ireland's largest cemetery — ~30 boulder dolmens around Listoghil passage tomb (3600 BCE), oldest on Cúil Irra peninsula.
🇮🇪 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 village
Skellig Michael Monastery Kerry Atlantic
Early Medieval · Irish Monastic
Skellig Michael Monastery Kerry Atlantic at Kerry, Skellig Islands, Ireland is a Early Medieval ancient village of the Irish Monastic 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
Loughcrew Cairn T (Hag's Cairn)
Late Neolithic · Boyne / Loughcrew passage tradition
35 m Loughcrew chief tomb with cruciform chamber whose art is illuminated by equinox sunrise.