Easter Island

Easter Island had statues of the Eleventh Doctor after he and River Song visited. (TV: The Impossible Astronaut)

The Fourth Doctor and Leela went to 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)

Other references

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)

Though not clarified in The Time of the Doctor, Easter Island was named as such because it was discovered by European explorers on Easter Sunday.
The statues mentioned by River are known in the real world are Moai.