I often like accompanying the minor body 15874 on its long, lonely voyage through the outermost depths of the solar system. It's on a very nifty centaurs/tno ssc file that I found, and I've unfortunately long since forgotten who made it (he might be called JACK?), and this particular body really goes out into the sticks - its aphelion is around 135 AU!
It's nice to zoom things up, centre on Sol, and watch the solar system get really small...

How about everyone else? What are the sights you often like to see?