Since its first participation in a Universal Exhibition (Philadelphia in 1876), Mexico has always delivered an impressive pavilion that captures the imagination. The fundamental theme of Expo Milano 2015 is sustainability, being as much a driving principle for feeding the world's population, as a criteria for architectural design, in terms of eco-friendly materials, ease of construction and dismantling, and fulfilling proposed programs.The architect Francisco López Guerra Almada, together with Jorge Vallejo and consulting biologist Juan Guzzy, designed the winning proposal of the international competition based on the most typical Mexican food: corn.