[ACV001]

they should have called it parliament, not cathedral. BBC don't know the meaning of the word cathedral, or was this intentional to trigger some kind of reaction from religious groups.

[beAbU]

I've heard the term "Cathedral" used quite often to describe massive enclosed spaces, especially if the interior surface is stony or hard.

It's a favourite in the caving community to describe very large, well, cathedrals in cave systems.