The Wonderful Wizard of Oz
I've just read this to my two kids. They loved the story and I had a ball making up voices for the characters (you should hear my Kansas accent...). Given that it's over a century since Baum wrote the book, it holds up remarkably well. Many children's books from the '20s, '30s and '40s sound positively archaic now. 'Oz' is older and yet it didn't feel antiquated at all. I suppose it's because the prose and tale itself are timeless, the hallmarks of a classic.
