The lordship of Huexotla, today the municipality of Texcoco, State of Mexico, was one of the three chief towns of the Acolhua or Texcocano kingdom, whose populace emerged from the great emigration of the Teochichimecas in the 11th century.

Located 7 kilometers from Otumba, the former Convent of Oxtotipac was built in the 16th century atop the base of a pre-Hispanic pyramid. Today, it is admired for its historical and architectural significance—particularly its unusually small staircases, doorways, and low ceilings.

During the early stages of the northward expansion into what would become New Spain, specifically between the 1520s and 1540s, the town of Aculco and its surroundings were a significant transit area for colonizers and missionaries. For this reason, this part of the Royal Inland Road was referred to as the "Gate of Tierra Adentro," through which the regular movement of merchants, officials, ranchers, and livestock took place.

During the 18th century, there was a significant surge in the construction of bridges. These structures aimed to overcome the topographical obstacles and rivers located at key points along the Royal Inland Road.

The origins of the town of Aculco date back to the year 1100 and it was founded by Otomi people, although its name comes from Nahuatl and means 'At the place where the water turns' or 'in the twisted water,' referring to the place where the water makes a curve.

Located in the municipality of Tepotzotlán, State of Mexico, the ancient Conciliar College and Seminary of San Francisco Javier, of the Society of Jesus, was for many generations a pilgrimage site for the Chichimeca until the formal establishment of the independent lordship of Tepotzotlán in 1460 during the 15th century.

This museum—housed in a large Augustinian construction built near Teotihuacan in a Plateresque and Gothic style, dating back to 1539—has an invaluable set of very early murals and impressive cloisters. The collection includes pre-Hispanic objects, as well as religious paintings and sculptures from the viceregal period.

The first Chichimec city in the Valley of Mexico, before they settled in Texcoco. An impressive pyramid has two temples on the top dedicated to Tlaloc and Huitzilopochtli, inspired by the great Teocalli of Tenochtitlan. The museum reconstructs the city and narrates its history from the twelfth century A.D.

A very ancient site in the Valley of Mexico, on the shore of Lake Chalco, which is practically dry today. It was one of the earliest ceremonial centers in Mesoamerica. Human remains from the site date back 25,000 years and the site is famous for its small female clay figures.