Temple of Ehécatl-Quetzalcoatl (Courtesy Instituto Nacional de Antropología e Historia, Programa de Arqueología Urbana). Archaeological sites in Mexico Cit y have street addresses, not GPS ...

The robot is called Tlaloc II-TC and gets its name from the Aztec god of rain. The robot is 3 feet long and designed to allow to easily pass through tight passageways that are too small for a human.

The temple, whose distinctive, round shape was described by Spanish priest Bernardino de Sahagún, was located about 80 feet north of where Spanish colonial maps had originally shown it to be.

Mini-robot finds surprise in Mexico's ancient Temple of Quetzalcoatl. April 22, 2013, 11:59 PM EDT. By Alan Boyle, Science Editor, NBC News.

Mexico's Temple of Quetzalcoatl, or the Feathered Serpent Pyramid, in the ancient city of Teotihuacan is believed to have been built between 1,800 and 1,900 years ago.

It includes the Temple of Quetzalcoatl, the Pyramid of the Moon, and the famed Pyramid of the Sun. Twelve of us gathered around, drinking Pulque, an ancient drink made with corn and cacao.

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A tiny, mud-splattered robot helped the past meet the future in Mexico. The 3-foot-long robot known as Tlaloc II-TC aided archeologists working in Mexico’s Temple of Quetzalcoatl, at the ...