Board Thread:Questions and Answers/@comment-26431448-20150525034447/@comment-61022-20150603121822

That's kind of a broad question. Incan/Mayan/Aztec civilizations have been used as plot devices in a lot of Marvel books over the years. Particularly in the older publications as there was still a lot of intrigue about these cultures because -- at the time -- there was not a lot known about these cultures in the western world.

The Apu, Ahau pantheon of gods exists in the Marvel Universe, but they have had small number of appearances. The leaders of both deities sit in the Council of Godheads. Their most notable involvement in the Marvel Universe was during the Eternals Saga (reprinted in Thor: The Eternals Saga Vol 1 & 2)

Members of the Eternals have been mistaken for members of the Aztec dieties, notably Ajak. The Eternals and the Celestials have some strong ties to the Aztecs, in that the Aztecs also worshiped the Celestials, as documented in the first few issues of Eternals Vol 1.

The land of El Dorado still exists as the Hidden Land where there has been a constant struggle over who wields a powerful Cobalt powered flame first seen back in. The Keeper of the Flame and They Who Wield Power have strong ties to Pre-Columbian Civilizations.

There are many other examples, but like I said above, your question was very broad. These were the ones that came to mind.