I read An Old-Fashioned Girl, also by Louisa May Alcott around the same time as Little Woman and loved it to pieces. I don't know if it's quite as famous, but it was a really, really fun read. Same goes for Tom Sawyer. Of course, there's always Jane Austen.
Currently, I'm going back and forth with H. P. Lovecraft's short stories and Wuthering Heights. Lovecraft's incredible, of course, but definitely differs from Ms. Alcott's style. Wuthering Heights... oh, what CAN one say about a book that was considered too pagan for even the most shameless englishman to read? I loves it.
Ooh, and To Kill a Mockingbird. That was an awesome book.
I also loved Jules Verne and H. G. Wells. I think that's it.... but I can't be sure.
Wait!!! I forgot Edgar Rice Burrows!! I loved his books too...