No visit to The Burren is complete without a stop at the 4000 year old tomb.

From Wikipedia: [The name means] "hole of the quern stones" and is a portal tomb in the Burren,
County Clare, Ireland, dating back to the Neolithic period, probably between 4200 BCE to 2900 BCE.
The dolmen consists of a twelve-foot, thin, slab-like, tabular capstone supported by two slender
portal stones, which support the capstone 1.8 m (6 ft) from the ground, creating a chamber in a 9 m
(30 ft) low cairn. The cairn helped stabilize the tomb chamber, and would have been no higher during
the Neolithic. The entrance faces north and is crossed by a low sill stone.