Easter Island
From Tardis Wiki, the free Doctor Who reference
Easter Island was located in the Pacific Ocean.
The Fourth Doctor and Leela visited Easter Island in 1872. (PROSE: Eye of Heaven)
River Song said the Eleventh Doctor was worshipped there when they visited it. (TV: The Impossible Astronaut)
The Eleventh Doctor made note of this island to Clara Oswald while they were in the town of Christmas on Trenzalore, responding to her question 'how can a town be called Christmas?', he asked 'how can an island be called Easter?' (TV: The Time of the Doctor)