8th C. – Round Tower, Clondalkin, Co. Dublin
Well preserved 8th century round tower that acts as a focal point for the area. Acknowledged as one of the oldest and best preserved in the country,
9th C. Round Tower, Swords, Co. Dublin
All that remains of a 14th century church is the square belfry. The site of the old church being rebuilt upon by the Church of Ireland in 1811.
10th C. – Grangefertagh Round Tower, Co. Kilkenny
The monastery at Grangefertagh (or just Fertagh), Co Kilkenny was probably founded by St Ciaran of Seir in the 6th century.
10th C. – Round Tower, Glendalough, Co. Wicklow
A very good example of a Round Tower with a height of 110 feet in height and with the door about 10 feet above the ground.
10th C. – Round Tower, Monasterboice, Co. Louth
The round tower of the abbey founded in the 10th century, around 980, is still standing although without its cap (conical roof).
10th C. – West Cross, Monasterboice, Co. Louth
The so-called west cross stands near the base of the round tower. Not as celebrated as the south cross, it is around 7 metres high but some of its panels are illegible and damaged.
1139 – St Mary’s Abbey Chapter House, Mary’s Abbey, Dublin
In the early 1880s, seven feet beneath street level, the Chapter House of St Mary’s Abbey was rediscovered under a bakery.
1142 – Mellifont Abbey, Co. Louth
Mellifont was the first Cistercian monastery to be established in Ireland. Founded in 1142 by St. Malachy, the monastery was consecrated in 1157 at a great national synod attended by seventeen bishops and the High King.
1150 – Baltinglass Abbey, Co. Wicklow
Baltinglass Abbey is one of the most important Cistercian abbeys of Leinster. and was founded in 1148 by Dermot McMurrough, king of Leinster.
1172 – Christ Church Cathedral, Dublin
Christ Church Cathedral is the Church of Ireland Cathedral for the Diocese of Dublin and Glendalough. Its origins date to about 1038 when the Viking settlers constructed a cathedral on this site.
