Poulnabrone dolmen megalithic tomb, Burren, County Clare, Munster, Republic of Ireland (Eire), EuropeThe Burren (from Irish: Boireann, meaning - great rock) is a unique karst landscape in northwest County Clare, Ireland. The limestone area measures 300 square kilometres and is roughly enclosed within the circle comprised by the villages Ballyvaughan, Kinvarra, Gort, Corrofin, Kilfenora, Lisdoonvarna and the Black Head lighthouse. The definitive article (ie "The" Burren) has only been added to the name by academics in the last few decades as it has always been traditionally called Boireann or Boirinn in Irish and Burren in English.

Coddhu Vecchju (Tomba di Giganti), a megalithic Sardinian gallery grave, near Arzachena, Sardinia, Italy, Europe

Trevethy Quoit, Bodmin Moor, Cornwall, England, United Kingdom, Europe

Coddhu Vecchju (Tomba di Giganti), a megalithic Sardinian gallery grave, near Arzachena, Sardinia, Italy, Europe

Megalithic ring carvings, Newgrange Megalithic Tomb, County Meath, Leinster, Republic of Ireland, Europe

Poulnabrone Dolmen Portal Megalithic Tomb, The Burren, County Clare, Munster, Republic of Ireland, Europe

Poulnabrone Dolmen Portal Megalithic Tomb, The Burren, County Clare, Munster, Republic of Ireland (Eire), Europe

Moody sky over Poulnabrone Dolmen Portal Megalithic tomb at dusk, The Burren, County Clare, Munster, Republic of Ireland (Eire), Europe

Naveta or megalithic tomb at the site of Es Tudons, Menorca, Balearic Islands, Spain, Mediterranean, Europe

Naveta or megalithic tomb at the site of Es Tudons, Menorca, Balearic Islands, Spain, Mediterranean, Europe

Castlerigg Stone Circle, Keswick, Lake District National Park, UNESCO World Heritage Site, Cumbria, England, United Kingdom, Europe

Megalithic tomb on the slopes of Slievemore mountain, Achill Island, County Mayo, Connacht, Republic of Ireland, Europe

Naveta d'Es Tudon, megalithic chamber tomb, 1130-820 BC, Menorca, Balearic Islands, Spain, Mediterranean, Europe

Naveta d'Es Tudon, megalithic chamber tomb, 1130-820 BC, Menorca, Balearic Islands, Spain, Mediterranean, Europe

Drombeg stone circle, near Clonakilty, County Cork, Munster, Republic of Ireland, Europe

Poulnabrone Dolmen Portal Megalithic Tomb, The Burren, County Clare, Munster, Republic of Ireland, Europe

Poulnabrone Dolmen Portal Megalithic Tomb, The Burren, County Clare, Munster, Republic of Ireland, Europe

Drombeg stone circle, near Clonakilty, County Cork, Munster, Republic of Ireland, Europe

Drombeg stone circle, near Clonakilty, County Cork, Munster, Republic of Ireland, Europe

Megalithic tombs, archaeological site of Tiya, 14th to 16th century AD, Gourague area, Shoa province, Ethiopia, Africa

Tourists entering Newgrange Megalithic Tomb, UNESCO World Heritage Site, County Meath, Leinster, Republic of Ireland, Europe

Lanyon Quoit near St. Just in West Cornwall, England, United Kingdom, Europe

Lanyon Quoit near St. Just in West Cornwall, England, United Kingdom, Europe

Lanyon Quoit near St. Just in West Cornwall, England, United Kingdom, Europe

Lanyon Quoit near St. Just in West Cornwall, England, United Kingdom, Europe

The megalithic tomb Nobbin, Putgarten, Ruegen Island, Mecklenburg-Western Pomerania, Germany

outdoor photo, The Burren: Poulnabrone Megalithic Tomb, County Clare, Ireland, Europe

outdoor photo, The Burren: Poulnabrone Megalithic Tomb, County Clare, Ireland, Europe

Puolnabrone dolmen, Hollow of the Millstone, County Clare, Ireland

Stonehenge, Wessex, England, Great Britain, Europe

Megalith in St Pauls Bay, Malta, Europe

Megalith in St Pauls Bay, Malta, Europe

Merry Maidens, stone circle of 19 megaliths from the Bronze Age, in Penzance, Cornwall, England, UK, Europe

Stone avenue, Celtic megalith replicas, Geyersberg, Bergen municipality in the Dunkelsteinerwald area, Wachau, Mostviertel region, Lower Austria, Austria, Europe

Stone circle, Celtic megalith replicas, Geyersberg, Bergen municipality in the Dunkelsteinerwald area, Wachau, Mostviertel region, Lower Austria, Austria, Europe

Trethevy Quoit Megalithic Stone Tomb, Dolmen, Portal Tomb, House of the Giant, Evening Sky, Tremar Coombe, Bodmin Moor, Cornwall, England, United Kingdom, Europe

Poulnabrone Dolmen, County Clare, Ireland

Prehistoric prince's burial mounds near Hundersingen, Obere Donau Nature Park, Baden-Wuerttemberg, Germany

Megalithic complex, Kalimbuang Bori, Toraja culture, Sulawesi, Indonesia, Asia

Megalithic complex, Kalimbuang Bori, Toraja culture, Sulawesi, Indonesia, Asia

Prehistoric dolmen at dawn on top of Monte Adarra in Urnieta, near San Sebastian. Gipuzkoa, Basque Country

Harhoog dolmen, megalithic tomb, Keitum, Sylt, North Frisia, Schleswig-Holstein, Germany, Europe

A prehistoric dolmen one spring morning on top of Monte Adarra in Urnieta, near San Sebastian. Gipuzkoa, Basque Country

Portal tomb Lanyon Quoit, Neolithic dolmen in a meadow, Penzance, Cornwall, England, Great Britain

Prehistoric dolmen at dawn on top of Monte Adarra in Urnieta, near San Sebastian. Gipuzkoa, Basque Country

Neolithic wedge tomb, Parknabinnia, The Burren, County Clare, Republic of Ireland, Europe

Wallfahrtskirche Maria Langegg pilgrimage church and Celtic megalith replicas, Geyersberg, Bergen municipality in the Dunkelsteinerwald area, Wachau, Mostviertel region, Lower Austria, Austria, Europe

A prehistoric dolmen on top of Monte Adarra in Urnieta, near San Sebastian. Gipuzkoa, Basque Country, vertical photo

Herd of cattle at shelter, portal tomb Lanyon Quoit in meadow, Neolithic dolmen, Penzance, Cornwall, England, Great Britain

Dolmen, Talati de Dalt, Minorca, Balearic Islands, Spain

Ale's Stones, Scania, Sweden, Scandinavia, Europe

Poulnabrone dolmen, Burren, County Clare, Ireland, Europe

Stonehenge, Wessex, England, Great Britain, Europe

Megalithic tomb, Arnkielpark in Munkwolstrup, community of Oeverseein, Schleswig-Holstein, Germany, Europe

Dolmen, Talati de Dalt, Minorca, Balearic Islands, Spain

Dolmen near Locmariaquer, Brittany, France, Europe

Dolmen, St. Paul's Bay, Malta, Europe

Neolithic megalithic temple, Tarxien Temples, UNESCO World Heritage Site, Paola, Malta, Europe

Stonehenge in front of the setting sun, Wessex, England, Great Britain, Europe

Dolmen, Talati de Dalt, Minorca, Balearic Islands, Spain

Tourists at the portal tomb, The Burren, Republic of Ireland, Europe

The portal tomb, The Burren, Republic of Ireland, Europe

The portal tomb, The Burren, Republic of Ireland, Europe

Grave stone, Dolmen of Fontanaccia on the plateau of Cauria, Corsica, France, Europe

Stonehenge, Wiltshire, Great Britain, United Kindom, Europe

The portal tomb, The Burren, Republic of Ireland, Europe

Neolithic megalithic temple, Tarxien Temples, UNESCO World Heritage Site, Paola, Malta, Europe

Megalithic temple on Malta, Europe

Poulnabrone Dolmen, The Burren, County Clare, Ireland

Kilclooney Dolmen, County Donegal, Ireland

The Altar Dolmen, Near Schull, County Cork, Ireland

Kilclooney Dolmen, County Donegal, Ireland

The poulnabrone dolmen at sunset, near ballyvaghan, County clare, ireland

Poulnabrone Dolmen, The Burren, County Clare, Ireland

Poulnabrone Dolmen, The Burren, County Clare, Ireland

Poulnabrone Dolmen, The Burren, County Clare, Ireland

Proleek Dolmen, County Louth, Ireland, Near Ballymascanlan

Ancient Poulnabrone Dolmen; County Clare, Ireland

Ancient Dolmen Ruins; Ballinskelligs, County Kerry, Ireland

Ancient Megalithic Tomb, Poulnabrone Dolmen; Ballyvaghen, County Clare, Ireland

Ancient Poulnabrone Dolmen; County Clare, Ireland

Carrowmore Stone Circle; County Sligo, Ireland

Ancient Dolmen Megalithic Tomb; Ardara, County Donegal, Ireland

Ireland, County Sligo, Tawnatruffaun, Portal Tomb.