![](http://www.alamy.com/thumbs/6/A8C16A48-B555-4EE4-9921-E9AA23502B8E/2A53JGB.jpg)
Poulnabrone cairn or portal tomb is the oldest megalithic monument in Ireland.
Size: 5079px × 3400px
Location: Poulnabrone, County Clare, Ireland.
Photo credit: © Maggie Sully / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: ancient, archeological, archeology, burren, cairn, capstone, clare, county, dig, dolmen, geosite, glacio-karst, historical, history, iconic, ireland, megalith, megalithic, monument, neolithic, portal, poulnabrone, pre, stones, tomb