Currently knocking off a few "modern classics"... Recently finished The Catcher in the Rye and have just started The Great Gatsby.
Oh, also recently finished Hells Angels by Hunter S Thompson too. One of his earlier works and there are only the faintest hints of the Gonzo style in it, so it isn't as much fun as Fear and Loathing In Las Vegas but is still a fascinating read. Hunter is (was) the king of evoking the feel of a particular time period or event, even if the reader never experienced it.
there was a list in the paper 100 books you should read before you die
gatsby was right up there, god that book bored the living crap outta me
hunters stuff is simply amazing, agreed hells is not at the same level, but the guy truly is an icon in literature, and he's one author who i can always imagine him (or depp) actually saying whats written in front of me