Earlier this year the on-line edition of National Geographic posted an article on:
The wording of the article owes more to journalistic hyperbole than anything else, but it includes a link to an interactive 360 degree image of the cathedral interior of quite amazing detail. The screenshot below shows a detail from the dome, but visit the link (about half way down) to view any other part of the cathedral interior in similar detail.
Other links from this article include:
As we will see in this article, this great building site, challenging all of human knowledge at that epoch, was the locomotive provoking a scientific and technological revolution. Raising the great dome drew new horizons, which far beyond the construction of a building sent ripples and shockwaves of philosophical optimism to the great benefit of future generations.