Quentulus Quazgar Mountains in the land of Sevorbeupstry on planet Preliumtarn, third out from the sun Zarss in Galactic Sector QQ7 ActiveJ Gamma and guarded by the Lajestic Vantrashell of Lob. You can look at it through a pay telescope although in most species it would severely damage the retina and optic nerve. Several nearby stands sell postcards, food, devotional tracts, and rental scooters.
The messsage is, “We apologize for the inconvenience.” (Sorry to ruin the surprise, but it’s your own fault for looking it up.) This message is the last thing Marvin the Paranoid Android ever saw, and he felt good for the first time in his life.