Neptune out your car window. From a series of digi-visualizations of what other planets would look like from Earth if they were same distance away as the Moon.
Let's forget that if you saw this image you'd probably be dead as Earth was assaulted by unimaginable tidal forces.
Update: Jon Williams: "Fact-checking Tom Moody on the Neptune Roche limit. (It's true! The earth would be torn apart!)" Hey, I know my science fiction. The Jupiter and Saturn pics are even more preposterous. And the photo-collager is a "former NASA art director" -- not to say that people associated with the space agency can't indulge in wild, impossible flights of whimsy.