On page 48 of Moby Dick, Ishmael is describing his new "savage" friend Queequeg: "Queequeg was a native of Rokovoko, an island far away to the West and South. It is not down in any map; true places never are."
It this simple description, Melville seems to get at what one of the most important distinctions between space and place. Place, once documented, becomes space. Place is personal. We can never really tell someone else how to get there.