Aguascalientes is comprised of five barrios antiguos, old neighborhoods, that retain their traditions and which, with the passage of time, have lent cultural, architectural, and historical identity to the city.

These important hidrocálido (literally hot water) neighborhoods in Aguascalientes include La Estación, La Salud, El Encino, Guadalupe, and San Marcos. 

The first, El Estación (the Station), is located in the east of the city. Here, visitors will find the Tres Centurias complex housing the old railway workshops of Aguascalientes, which was an important railroad center in the days of Porfirio Diáz at the turn of the century.

In the neighborhoods of La Salud (southeast), El Encino (south central), and Guadalupe  (west), visitors can find plazas, churches, and Baroque buildings from the city’s boom years that now house museums, restaurants, and other cultural venues.

Finally, San Marcos is the city neighborhood most visited by tourists because of the Feria Nacional de San Marcos (the San Marcos National Fair) held there annually in April. It is decorated to welcome  thousands of national and foreign visitors.