The most well-known castle in Ireland is probably Blarney Castle, site of the kissable Blarney Stone that Ireland is famous for. The castle is surrounded by beautiful grounds but the structure itself is just a shell. The legend is that if you kiss the Blarney Stone you will be granted the gift of gab or you will become eloquent. Depending on your tolerance for silly touristy gimmicks you may or may not feel compelled to visit Blarney Castle and kiss the stone. It is possible to visit the castle on a day trip from Dublin, but it is better to schedule a stop on your way to or from Ireland’s spectacular west coast. By Talek Nantes from Travels with Talek - https://travelswithtalek.com/cool-things-ireland-famous/