Waterford
While it's main claim to fame is the eponymous Crystal - which you can see being made and purchase here - Waterford itself is a charming place; as Irish as a pint of the renowned black stuff!
Visit ancient Waterford Castle, now a luxury hotel and like the town's ramparts, a reminder of days when this was a Viking stronghold. Wander amid eye-pleasing cobbled squares and elegant town-houses; or explore Tipperary's Golden Vale, famed for its castles.