Yucatán
From Tardis Wiki, the free Doctor Who reference
Yucatán was a Mexican state. Its capital city was Mérida. According to the Second Doctor, Quintana Roo was another of its cities. (TV: The Enemy of the World)
In the K-T event, an asteroid struck the Yucatan peninsula, throwing up a thick cloud of dust that blocked out the Sun. (PROSE: Prehistory Repeating Itself [+]Loading...["Prehistory Repeating Itself (feature)"])
In 2012, Jo Jones planned to visit Yucatán as part of a conservation tour of the country. (AUDIO: The Infinite Today)