Ardrahan is a village in County Galway, Ireland.
Remains of the Ardrahan round tower
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