The story’s a bit slow to start, but this giant installation looks amazing:
The large-scale projection installation features 21 powerful projectors streaming mind-bending graphic patterns on over 20,000 square meters of space in Oberhausen, Germany’s massive gasometer. The installation is among the world’s largest and technically most sophisticated interior projections.
[YouTube]
During the summer, the city of Chartres, France lights up several of their buildings (including the famous cathedral) with animated patterns. Worth a side trip from Paris if you have an evening to spare.