Irish round towers are early medieval stone towers of a type found mainly in Ireland, with two in Scotland and one on the Isle of Man. As their name Cloigtheach indicates, they were originally bell towers, though they may have been later used for additional purposes.
The round tower at Glendalough, Ireland, is approximately thirty metres tall.
The Round Tower at Kinneigh has a unique hexagonal base.
Cross-section of a round tower interior
Daniel O'Connell's tower at Glasnevin Cemetery
Kilmacduagh Monastery is a ruined abbey near the town of Gort in County Galway, Ireland. It was the birthplace of the Diocese of Kilmacduagh. It was reportedly founded by Saint Colman, son of Duagh in the 7th century, on land given him by his cousin King Guaire Aidne mac Colmáin of Connacht.
Augustinian Abbey of St. Mary de Petra, erected in the 13th century
Cathedral
Kilmacduagh round tower: at 32.5 metres (112 feet) it was the tallest pre-modern construction in Ireland.