Reginald's Tower is the oldest civic urban structure in Ireland and has played a pivotal role in the country's history. The precursor of this tower is believed to be Dundory, a Viking fortification built on this site during the 10th century. This early fort formed the apex of the triangular Viking settlement and was in all probability a port for Viking longboats. It was strategically located on the high ground between a tidal inlet or branch of St. John's river in the south east (since drained and now known as the Mall) and the River Suir to the north.

Reginalds Tower is a circular tower, part of the town's defences, built in the beginning of the 13th century, with a second phase in the 15th century. It was also used as a mint, prison and military store. It has been restored and now houses an exhibition.

Address: The Quay
Waterford

Phone: 051 304220