I fully expect that they have plans to attack the most famous sites in Europe. Perhaps the French might feel a twinge if Chartres or Notre Dame are destroyed; I know I would feel the loss.
Imagine all the museums of the west destroyed. Imagine the Sistine Chapel gone forever, Rembrandt's works set to flame, the Mona Lisa in ashes. Yes, these are things and not people, but they are part of our heritage and the glory of the West.
The barbarians must be defeated.