Duntryleague
County Limerick, Ireland
Duntryleague passage tomb, also known as "Diarmuid and Gráinne's Bed", is a passage grave and national monument located atop Duntryleague Hill in County Limerick, Ireland. There is a very narrow entrance to the chamber with many kerb stones still in place near its entrance.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).