Rich stelae, sculptures, tablets, and hieroglyphic inscriptions allow us to learn about its governors and the relations it had with other cities in the region. An independent political entity (600-800 AD), it played a vital role in the trade along the Usumacinta River.

The largest and most important city of Chetumal bay. Its inhabitants were skilled navigators who paddled their canoes along the canals of the region and ventured into the Caribbean to trade. As well as the numerous structures, they built wells and “chultunes” (cisterns) for the supply of fresh water.

This site was inhabited from 1500 BC up to the seventeenth century, serving as the center of government of the region, in one of the most fertile parts of the present-day state of Morelos. A great plaza and two sixteen-foot-high platforms testify to its past splendor.

Possibly inhabited by immigrants from Teotihuacan, this architectural complex is made up of clusters of very simple rooms.

The remains of the most important Tlaxcalan fiefdom at the time of the arrival of the Spanish. In the remains of a small temple we can see an altar with polychrome decoration, an area of flint stones surrounding a large burning brazier, upon which lies the figure of Tezcatlipoca.

An important coastal city, inhabited since the fifth century BC, with impressive architecture related to that of El Petén in Guatemala, of temples erected with intricate arrises. It was of great importance in the trade between the peninsula and the Gulf coast. It had contact with Chichen Itza and Mayapan.

This site is characteristic of the Zoque culture, close to the Olmec and the Maya, but different. Thirteen hundred years ago its founders flattened the irregular terrain and formed artificial terraces on which to erect their delicate constructions, as well as producing fine pottery.

This site is unique in Mesoamerica, as it was carved in one piece out of an enormous rock on the edge of a cliff for military initiation purposes. The site was created by the Mexica not long before the Spanish conquest, and is dedicated to the initiation of Eagle and Jaguar-Ocelot warriors. It contains splendid sculptures of these symbols.

This is a small settlement that was subjugated by the Acolhua. It maintains a westward-facing pyramid, which is unusual for Mesoamerica and leads us to suppose that it was dedicated to Huitzilopochtli. There are rooms next to the pyramid in which the rulers lived.

Here lie the ruins of the great city of Texcoco, capital of Acolhuacan (660 to 1521), where once stood the poet king Nezahualcóyotl's palace. Nowadays, only a small architectural complex remains, which allows us to admire the skill of its inhabitants at cutting and maneuvering enormous blocks of stone.