This is the interior of the monument on Oulart Hill. To quote from the architects of this memorial to the Wexford Rebellion:

The Building

Upon arrival, there are no carved names, no flames, no pools of water. This is a much older kind of memorial. Warren recalls Tallon saying, "What we want, Michael, is to go over a broken stone wall and be there. The approach should be like the surprise of finding a fairy ring."Tallon chose white concrete for its "pallor of death", illuminated by "the light of resurrection." "We wanted a basic monolithic material of strength and nobility," says Tallon, "with which to create a modern Stonehenge."

Tallon calls Warren's two sculptures - horizontal curving tablets of 200-year-old Irish oak that make a shrine of the interior - "upturned hands, offering hope for the future." Warren likens them to the cremation bowls found in Newgrange. Linkback: https://mountainviews.ie/summit/1316/comment/15982/