19th century Aztec couple. The last of the great MesoAmerican cultures were the Aztec, they were a Nahuatl-speaking people, who in the 15th and early 16th centuries, ruled a large empire in what is now central and southern Mexico. The Aztec are so-called from the word Aztlán.
Did you know there were observatories in Mayan times? This is El Caracol, or 'The Snail', which has windows and doors aligned to astronomical events. http://www.trafalgar.com/treasures-of-the-yucatan-2014