The second presentation of the day was led by architect Miguel Medina, who offered a fascinating exploration of Tezcotzingo, describing it as a "global treasure" and an outstanding example of architecture, cultural landscape, and sustainability. Medina began by contextualizing Nezahualcoyotl's work within the framework of a severe food crisis that struck the region in the 15th century. Instead of opting for war to acquire resources, Nezahualcoyotl implemented an innovative and sustainable solution: a complex water management system and agricultural terraces. The architect meticulously detailed the ingenious hydraulic system developed by Nezahualcoyotl. This system, spanning 12 kilometers, channeled water from mountain springs to the Tezcotzingo hill, maintaining a constant slope of 2.8 degrees. Medina highlighted the technical complexity of this feat, noting that even with current technology, replicating such an achievement would be a considerable challenge. One particularly impressive aspect that Medina emphasized was the transformation of the landscape. The terrace system not only enabled cultivation in previously arid areas but also helped prevent erosion and maximize efficient water use. This intervention, explained Medina, turned a virtually uninhabitable area into a productive and sustainable paradise. The architect stressed how these works not only solved practical problems but also incorporated remarkable aesthetics. He described Tezcotzingo as a masterpiece of landscape architecture, where functionality and beauty harmoniously merged. Medina concluded his presentation by underscoring the contemporary relevance of Tezcotzingo. He argued that the design principles and resource management employed by Nezahualcoyotl offer valuable lessons for addressing today's sustainability challenges. He called for the creation of a comprehensive management plan for the area, aimed at preserving this heritage and applying its teachings in the modern context. This talk not only illuminated Nezahualcoyotl's brilliance as an engineer and landscape architect but also demonstrated how solutions from the past can inspire and guide our responses to present and future environmental and resource challenges.