Shan Shen
From Tardis Wiki, the free Doctor Who reference
Shan Shen was a planet inhabited by humans or a humanoid species with a Chinese culture. Some streets here were filled with flags, pagodas and various crowded stalls.
The Tenth Doctor once took Donna Noble to Shan Shen. She had her fortune read by a fortune teller working with the Trickster's Brigade.
After the Trickster's attempt to change history backfired, all of the writing on the planet - including that on the Doctor's TARDIS - changed into the phrase 'Bad Wolf'. This, coupled with the ominous tolling of the Cloister Bell, warned the Doctor that the end of the universe was approaching. (TV: Turn Left)