
How do they fix broken stone and burned timbers?
It looks like this:

Clear the loose stone and stabilize with timbers.
How big are those timbers?

It’s hard to see the scale.

Huge beams.

This is a guy on top.

Any idea how they’re made?

The arches need help.

Imagine applying modern technologies and preservation techniques.

Stone, wood, and steel answer the call.

Add to stone, wood, and steel workers who brave the hazards.
Now imagine how it was done originally.