The Castillo de Santa Cecilia, located on top of a hill, was built in the 19th century as a private residence. This building reflects the influence of the neo-Gothic architectural style and is an example of the urban development that took place in Guanajuato during this period. Originally, the property belonged to the family of a notable miner, underlining the connection between the wealth generated by mining and the architectural boom of the city. Over the years, the castle has been used for various purposes, including social and cultural events. Today, the Castillo de Santa Cecilia is not only a tourist attraction, but also a space for artistic and cultural activities, preserving the history of the Guanajuato elite.

The Rayas Mine is one of the most emblematic mines in Guanajuato, known for its rich silver production during colonial times. Its exploitation began in the late 18th century and it quickly became one of the most productive in the region. The mine has been an important testimony to Guanajuato's mining history, where thousands of workers, mostly indigenous and mestizos, toiled under difficult conditions. During its heyday, the mine produced a significant amount of precious metals that sustained the economy of New Spain. Today, the Rayas Mine offers guided tours that allow visitors to learn about the methods of mineral extraction and the life of the miners at the time, providing a valuable insight into the mining history of the city.

Guanajuato's tunnels and underground streets are a distinctive feature of the city, which emerged as a solution to the problems of flooding and congestion in the main streets. Built throughout the 19th century, these tunnels have served as transportation and evacuation routes for the inhabitants. Their ingenious design reflects the city's adaptation to its mountainous geography, allowing movement in a complex urban environment. In addition to their functionality, the tunnels have historical significance, as they were used at different moments in history, including social conflicts and revolutionary movements. Today, these tunnels are part of Guanajuato's cultural heritage, offering visitors a unique experience to explore the city's underground history.