Kaysersberg, France: Église Sainte-Croix

You can call it Holy Cross Church if you'd like. Whatever the title, it's been around since 1230 or so ... which is quite a while by any standard.

It actually took a few hundred years to finish the place. The building was modified in the 1500s. Fast forward another three hundred years, when a dome was added to the church.

The front of the place was inspired by the Cathedral in Strasbourg, and the inside has plenty of quite old items. It is considered one of the most beautiful churches of its type in the region.