Here is a fountain at the entrance to the wonderful Irish Heritage Site at Newgrange.
Newgrange is a megalithic era passage tomb surrounded by many stones with all sorts of what we recognize as "Celtic" symbols, particularly knots and circles, carved into the rocks. The tomb itself is a passage tomb in which a central stone receives a few minutes of light once a year at the winter solstice. You can read about Newgrange here and here.
The fountain is in the visitor's center. It's all rocky and rough. So if you are writing about John the Baptizer again this week, perhaps this fountain will inspire you.