I'm currently reading Dune by Frank Herbert. I tried to read it once when I was in my early teens and didn't finish, but I figured I'd give it another go with all the hype over the recent TV adaptation. I've just passed the point where I gave up before (~150 pages) and I'm kicking myself, because it turns out I stopped just short of where all the action seems to really get going. The book is front-loaded with a lot of worldbuilding by way of sci-fi/fantasy terms presented without much context, so I can understand why my younger self got bored and gave up. I'm really enjoying it this time around though, I think I'm a lot more patient as a reader now than I used to be.