Focus on this artwork and discuss the Construction.
The Kastorbrunnen is a large square of Niedermendig basalt cubes, and was originally in the middle of the square. It was created to the plans of the military engineer Dagobert Chauchet by the sculptor Rauch from Aachen, and has a high, grooved base and a wide grooved end plate. There are two suspended semicircular fountain shells from Lahn marble attached. The well was fed with spring water piped from Metternich and,  since 15 August 1812 (the birthday of the emperor Napoleon) has supplied the neighborhood with clean drinking water. It supported a group of figures made of limestone with the personifications of the Rhine and Moselle. Because of severe weathering the sculpture was removed shortly after 1817. A copy is now in the garden of the Electoral Palace. In the 1950s the fountain, which the French had placed on the axis of the Kastorgasse, and thus in the line of sight of the basilica, was moved a few meters to the north to clear the view of the church.
Lahn Aachen basalt