I grew up in a town with an incredible cathedral, similar in size and style to Notre Dame and even a bit older.
It's completely underrated for no reason - it honestly has to be the most
amazing unknown French monument by a long way.
https://www.ouest-france.fr/pays-de...renaissent-pour-lete-apercu-en-images-4344213
It's a massive presence just there in the old town, so enormous and solid you can't imagine anything destroying it. Nothing like any contemporary architecture. All the reinforcements around the side, everything is built so cleverly to make it stay solid and stay up.
We used to visit it all the time with school, and at the time I was sick of having to learn by heart which bits had been built by which people at different centuries, but it is actually so interesting. It was started in the 12th century when the top of the vaults are rounded (roman architecture) and as centuries progress the detailing becomes more gothic, and then they had the unique triple flying buttresses all around. The painting style of the pillars would change based on the period too, and you could see the signature of each workman engraved in every single stone.
When I visited Notre Dame, a lot of what I had been told about my local cathedral applied too. It's completely incredible that all over France, several of these enormous cathedrals were being built simultaneous for centuries.