The Mound of the Hostages is an ancient passage tomb located in the Tara-Skryne Valley in County Meath, Leinster, Ireland.
The mound is a Neolithic structure, built between 3350 and 2800 BCE. It is circular in form, roughly fifteen metres in diameter and three metres high. It is built in the same style as the Newgrange tomb. The structure is dome-shaped with an inset for the entrance and a small doorway, set almost one metre into the side of the monument.
Wikipedia https://en.wikipedia.org/wiki/Mound_of_the_Hostages
Address Ireland
Coordinates 53°34'46.186" N -6°36'41.78" E