Among the mysterious cities in Yucatan Peninsula, the most striking and unforgettable one is the famous "Feather Snake" city Itza, Chen Chi. Jacques Sustenar, a famous French Mayan historian, believes that "Chen Chi Ithaca" means "the edge of Ithaca's well". The so-called "Ithacan people" were Mayans who came to Yucatan Peninsula from Guatemala's Peten region and central Mexico around the 5th century. They established a new Maya dynasty, with Ithaca, Chen Chi as its capital. Before the Mayans arrived, the Tordegas lived here. They are a tribe of indigenous Indians in Mexico and have created splendid culture. After Maya came to Yucatan Peninsula, they merged the culture of Tordega people and created the Maya-Tordega mixed culture in Iza, Chen Chi. Mayan historians call it the late Mayan culture in the Mayan classical period. They worship the "Quetzalcoatl God" and the Rain God. A famous building in the center of Iza, Chen Chi is the Quetzalcoatl Pyramid. Therefore, Itza, Chen Chi is also called "Feather Snake" by Mayan historians.

Chichen itza is an important stronghold of the Mayans. Temples, palaces, streets, altars, squares, etc. In the "Feather Snake" city, which is nearly four kilometers north and south, everything is in good order, which shows that the Maya at that time had a good social organization. In 987 AD, the Toltecs occupied the city, and as their capital, the Mayan civilization was impacted. During the period from 1 1 to12nd century, Itza, Chen Chi was in its heyday. Toltec people built extraordinary stone halls, colonnades and palaces, interwoven with Mayan civilization and Toltec civilization. Around the square covering an area of 20,000 square meters, 1000 pillars nearly 23 meters high are the product of this era. Nearby are halls supported by pillars, sunken courtyards, corridors with pillars and pyramids. In about 1224, Mayan soldiers of the Yi Festival drove out the Torteks and reoccupied the city. It became the new capital of the ruler Tobisin Kunsakodo. "Kunshakodo" is "Quetzalcoatl" in Tortek and "Ancient Coca" in Mayan. The pyramid temple overlooking the city was built for him. Chichen itza was not the center of power for a long time. Shortly after being attacked by Maya Francisco, another powerful tribe in Yucatan Peninsula, Chen Chi Itza was abandoned in about 1224. The huge remains of Chen Chiyicha that people see now are neither a complete Mayan culture nor a pure Toltec culture, but a complex mixture of two cultural and ideological models.