Where is kukulkans pyramid

The principal entrance has a lintel sustained by two square pillars, adorned with bas-reliefs. The pyramid was built on top of an earlier, smaller structure, which it covered.

During the excavations the archaeologists discovered the smaller temple, which is 16 meters high. The light and shadow phenomenon. These begin to move up and down along the balustrade to form the silhouette of a serpent.

It is a four sided pyramid, with a rectangular temple on the top. Using a noninvasive imaging technique, researchers were able to look inside and discover a second substructure below the first one. A ramp was observed -- most likely a small stairway -- and the probable existence of a religious altar.

Insight into how settlement developed. The recent field work in the area, completed in , determined that the most important habitation period of Chichen Itza was divided into three eras: that of to , corresponding to the era of "pure Mayas"; from to , a transitional period, when pilgrims from the center of Mexico arrived and began the Maya-Tolteca style; and a final stage of occupation from to Read more: Discovering India's ancient stepwells.

The structure discovered in the s corresponded to the transitional period, and the one found now is from the pure Mayan style, according to the research team from the Geophysics Institute of UNAM's Engineering School and the National Institute of Anthropology and History.

A lot has been excavated, and there is a lot of information on the transitional periods of the Mayas and there is a Mexican style at the site, but there is little information on the original site," she added. Argote described the ruins as sacred, cosmic locations where "the governors, the priests were in contact with the spiritual world.

The research team developed the noninvasive imaging technology -- tri-dimensional electric resistivity tomography -- used to make the discovery of the second substructure, and it's new within the geophysics field, according to Chavez Segura.

Journalist Patrick Sung Cuadrado contributed to this report.