From Reader's Respite: "Tell me about the best location a book has taken you to. Perhaps a book really did inspire you to physically go some where. Tell me. Or perhaps a book took you somewhere in your mind so completely that you don't even need to visit in real life. Tell me."
Oh wow, how to limit this to one book...Dash & Lily's Book of Dares by Rachel Cohn & David Levithan made me fall madly in love the The Strand bookstore in NYC. I pictured it in my mind's eye while reading and when looked it up on the internet, it matched perfectly. Now it's part of my inner happy place. :-)