Colmar was the first town in France to put in place an operation of such amplitude, first concieved for Christmas event and eventually functionning throughout the year for its great success. At nightfall you can admire the illuminations on Friday and Saturday as well as every nights during Colmar's event periods such as the International Festival, Alsace Wine Fair, and Christmas in Colmar. In 1997, Colmar was awarded the special prize of the Académie des Arts de la Rue (Academy for road arts) for its truly exceptional achievement.

1150 computer-driven light sources, using the fibre optics cable network, are skilfully distributed throughout the town and thus allow an original light show throughout the year, which varies in intensity and colour. Like a magic paintbrush, it redraws the town, applying fresh contours and new reliefs, enhancing a thousand and one architectural details.