Doctor Who is a British science fiction TV show that is produced by the BBC. Google has added a Doctor Who Easter Egg to Google Maps. Now when you visit this link, it will show a U.K. police box in Google Street View. When you double-click the arrows in front of the police box, it will take you inside the police box to reveal the TARDIS, which is a time-traveling space ship in the show.
[Source: Geeks of Doom]