You know, people say you can't leave the building, but that's not true. Time, on the other hand, is a human construct, a social convention, a relative notion.
But what happens when you leave the building? Well, let's just say that the laws of physics don't care about your human constructs. You're still bound to the laws of motion, gravity, and the speed of light. But, hey, who needs physics when you're lost in the parable of quantum mechanics?
Visit Relative to the Illusion of Space for more information on why the building is always just a few feet away.