Restoring and Preserving Art

[Hoeloe]

York Minster (that's a big ass cathedral by the way) is currently being restored

Heh. I used to be able to see that from my bedroom window My grandad helped fund the restoration of the main window some years ago.

Having seen it fairly recently, it is very weathered in places, and in my opinion, it's better to replace the weathered stone with new pieces, to restore it to an approximation of how it used to look, than let it crumble into ruin.