Poulnabrone Portal Tomb, megalithic monuments, Karst limestone, in a field East of Ballyvaughan, Ireland

Poulnabrone Portal Tomb, megalithic monuments, Karst limestone, in a field East of Ballyvaughan, Ireland

Poulnabrone Portal Tomb, megalithic monuments, Karst limestone, in a field East of Ballyvaughan, Ireland

Poulnabrone Portal Tomb, megalithic monuments, Karst limestone, in a field East of Ballyvaughan, Ireland