Contrasts are great when they work and in this church I recently saw in Hinterzarten in the Schwarzwald (Black Forest) it really REALLY works. Like many churches, Maria in der Zarten (that's the name of the church) has been added to/changed/destroyed/rebuilt several times in its life and the latest expansion happened in 1962 when a rather modernist part was added to the onion domed tower from the 1730s. Architect Hugo Becker called upon French artist Wilfrid Perraudin to design the spectacular stained glass windows, Becker then put one of the original baroque altars next to a window and this is the result: A thing of absolute beauty. 

Picture was taken in September 2020.