I've already ranted about my distaste for Anne Rice elsewhere on the forums, so instead I'll take a stab at a sci-fi classic.
20,000 Leagues Under the Sea, I am looking at you. And oh, is that look such a side-eye.
Frustratingly, there's a good story buried in there somewhere, but it takes some serious slogging to get to it, because the narrator is a scientist who is obsessed with fish. There are entire passages that are just lists of fish. And not just their normal names, no, they're all named off in the Latin to ensure that nobody knows what he's talking about so that Verne can sound all fancy and knowledgeable. Fish, fish, fish, fish, fish, sharks, squid, fish. Oh, and there's some fish! And seaweed! And oh, yes, just in case you forgot, fish!
And this might be down to a bad translation, but it took me most of an exciting action passage for me to figure out that the thing they were fighting was a hippopotamus. Because they kept calling it a "dudong", a word that is both 1) obscure, and 2) capable of bringing out the inner 12-year-old boy in anyone's sense of humor.
There's also the weird constant fawning of the narrator's manservant all over him. I find this goes down a lot easier when I substitute the rampant Victorian classism with "but he's in luuuurve". So, hooray for headcanon!
But the worst, most egregious thing this book does is really quite unforgiveable. And...OK, this is going into spoiler tags, because even though this book is over a century old, this does sort of give away the end:
Seriously, if it hadn't been my Kindle, I'd have thrown the book across the room.
From what I hear, all of that stuff is actually resolved in the sequel, but just like 20,000 is stuffed full of lists of fish, The Mysterious Island is stuffed full of lists of plants. Finding out what happened just isn't worth the suffering.