A previous post I asked what is intriguing about Notre Dame. I made my first trip to Paris about 6 weeks after the fire and so have never been. Admittedly, I'm not big on churches and cathedrals and so I have no idea if I missed out. I would have gone anyway because it's famous and one of those places you visit because of that. If nothing else, since I love taking photos I would have enjoyed a photo of the Eiffel Tower with a gargoyle in the foreground. There is the opinion by some on this forum that if it doesn't interest you, don't go...makes sense. But in hindsight, I can tick off many places where I ignored that advice and the site ended up blowing me away; the two biggest are the Vatican and the Tower of London. Back then I had no interest in art and had no idea how much the art would draw out an interest in religious history, especially the reformation. I have a love for castles, but for some reason the Tower didn't resonate with me when just reading about it in guide books, but now it's likely my favourite site that I've been to in Europe.
What blockbuster sites were you neutral or less about that ended up blowing you away?