What are some reasonable steps that could be taken to fireproof historic French cathedrals?

Like Notre Dame...

What is today's architectural style called?

Art Deco, Victorian, Brutalist, Modernist, Post-Modern -- all of these architectural designs bring to mind a specific era. Today's styles don't seem to be so clearly defined, but this could just be because we're living through it. Is there a name for the architectural style that produces homes that ...