I love Fahrenheit 451. It's one of my favourite books of all time. Using the USA list Sarah provided:

Litte Women (probably my number one favourite book of all time, if I had to choose)
The Wonderful Wizard of Oz
Jane Eyre (Also in my top ten favourite books)
A Little Princess
The Secret Garden
Alices Adventures in Wonderlan
Through the Looking-Glass
The Scarlet Letter
The Odyssey
The Phantom of the OPera
Hamlet
Romeo and Juliet
The Taming of the Shrew
Frankenstein

Some modern "classics" I've read:
1984
Animal Farm
Fahrenheit 451
Cat's Cradle
Lolita

Several classics are on my to-read list:

Les Miserables
The Portrait of Dorian Gray
Remembrance of Things Past
Pride and Prejudice
The Age of Innocence
A Tale of Two Cities