[Some shock and "oh... neat...!", may follow with curious inquiries depending on if he seems like he'd be in the mood for it, probably. But until that actually crops up, it's sinking back into the ocean of infinite possibilities...]

Oh, that's a more Protestant country. Protestantism and Roman Catholicism are both denominations of the Christian faith. [Putting that explanation in just in case.] I have acquaintances who have been to Germany, but I've never stayed in the country myself. I'm from France. [She briefly considered asking him if he's been there, but...

He's had a recluse childhood, hasn't he? Maybe it's best to refrain and just answer his question, for the time being.]