For what my opinion is worth, I was awestruck by Beauvais' cathedral personally (even though, or especially because, I visited a fair number of period churches). Its nave is incredibly high, high enough that the aisles vaults by themselves are higher than some entire churches. It's also only halfway done, which is somewhat disappointing from an architectural perspective but fascinating from an archeological perspective: half the Carolingian cathedral is still there, which is a rarity.
It's a more recent cathedral than Notre-Dame, and consequently higher, nearly as high as Beauvais in fact, but this one didn't collapse (even if she needed a very costly iron belt to stay that way).
It's also located near the quite nice Saint Leu neighborhood with tons of restaurants near the main canal. And right next to Saint Leu, you have the Hortillonnages (crisscross of waterways and small gardens) which are also worth a visit (it's possible to rent boats to visit them).
It's only ~1 hour away from Paris (Gare du Nord) by train, and definitely worth spending a day there in my opinion. Just don't be afraid by the sight of the tour Perret when exiting the station at Amiens ^^.
The only other time that I've been such moved is when I visited Dachau. But it's a different feeling one of darkness and extreme sadness.
Both are worth visiting to experience the true arc of human experience.
It's kind of the opposite. Every city of significant size in France (and more widely, in Europe) has a cathedral, and many of them are comparable to Notre Dame.
It is a beautiful piece of history, but that's the extent of it for me. Cheers to those to find the cathedral moving or breathtaking.
It's just a cathedral, I thought, just an attraction to check off from my 'list of things to see' so I visited it on a whim really on a lazy Sunday afternoon while I was around the area. Oh man, there is something about it, the grandness, the structure. The rebuild appears to going for a very faithful reconstruction of what it was before.
Definitely go see it if you get the chance.