Probably not what you are thinking when you read the title.
Here is a snap of the famous Cathedral of Our Lady of the Assumption of Clarement-Ferrand, in the city of the same name, in France:
What’s absolutely amazing about this cathedral is its color. Claremont-Ferrand sits in an area of France filled with volcanoes, and the cathedral is build with black lava stone.
It’s a pretty impressive sight!
Even more interesting than the church are the people, many of whom do not speak French, but rather a descendant of the old and nearly extinct Lang d’Oc language.