This great tomb-temple dates from 3200 BC, a thousand years before Stonehenge was built. It is astronomically aligned and includes some fascinating ancient rock art.
Rock of Cashel
These striking hilltop ruins include a 12th-century royal chapel, cathedral and round tower, plus some fine high crosses in the churchyard.
This ancient monastic site includes a large cemetery, two ruined churches, a tall round tower and two of the finest high crosses in Ireland.
Mt. Croagh Patrick
Each year, a million pilgrims and visitors make the trek to the top of this holy mountain to pray, do penance, or just enjoy the spectacular views.
This ancient monastic settlement in a spectacular natural setting was founded by St. Kevin, a hermit monk (d.618). Its extensive ruins include several churches and a graceful round tower.
Dating from about 3000 BC, Knowth consists of a large central mound surrounded by several smaller ones. It is especially important for its rich collection of megalithic art.
Riasc Monastic Settlement
This remote site on the Dingle Peninsula is home to impressive ruins of a 6th-century monastery and an important carved stone.
This Cistercian abbey is mostly in ruins, but there is a fine lavabo that is mostly intact, along with the chapter house and a section of the cloister. Nearby are ruins of a gateway and a small church.