This one is from the sixties.
I had been on a trip to Belfast and was hitching slowly back to Dublin and was stuck by the side of the road about 20 miles from the capital heading south when a car, heading north, pulled up by the side of the road and an anxious Indian gentleman asked me ” Can you tell me please where is Dundalough”. I was mistified but then the penny dropped. ” You mean Glendalough ” I said. he nodded hopefully. ” You are heading in the totally wrong direction” I told him. “Glendalough is in Wicklow, you’ll have to turn around and go back through Dublin and head south from there” He obediently u turned and headed south.

It was only then that the real penny dropped as I looked across the road and saw a sign for Dundalk just a few miles up the road to the north.
It was, of course Dundalk, pronounced as spelled, that the unfortunate man was looking for.
My only consolation was that he would surely find Glendalough much prettier.