Help me identify a cathedral from Baraka

In the “movie” Baraka near the end there is some footage of a cathedral of some sort, which appears to be built completely from crystal or glass.
Does anybody know which one that would be and where it is?
I would love to see that in real life.

I believe that’s the Mausoleum of Shah-e-Cheragh in Shiraz, Iran

mack is correct

Wow, that’s just… wow.
Now I need to find out how to get to Iran… and how to afford going to Iran.
I really need to see this in my lifetime.

Thanks for the info.