What are some of the most beautifully written books you’ve ever read?

I’ve been reading and writing since I was a kid. Unfortunately, I have slowed down a lot on reading over the years. I could once read a big book in less than 3 days and several books in a month, but nowadays work, marriage and other distractions get in the way and it’s often hard to balance all hobbies and interests. I have never, however, stopped writing. I write every day.

I’m trying to get back into a reading habit beyond comic books, but I’m particularly interested in books that will inspire my writing. I’m often interested in writing that flows poetically but doesn’t come off purple prose-y or forced.

What are some of the most beautifully written books you’ve ever read?

UPDATE: Thank you so much to everyone who commented, so many of you did! I really appreciate it!! I'm slowly going through your comments and will edit this post when I pick my next read.