Attentive to the cultural context of their creations (like the Vedic tradition in India) and the heritage of modern architecture (Tour Opus 12, La Défense), architects Denis Valode and Jean Pistre view the tower as both a functional and aesthetic research object that must meet the requirements of tomorrow's urbanity: it must show respect for environment, save energy and reduce ground coverage, find ways to invest heights. Some towers are filled with trees and gardens (Tour Generali, La Défense), others incorporate the sun's path into their design (Tour Saint-Denis, Saint-Denis/Aubervilliers). Through twelve examples – twelve towers designed by the Valode & Pistre firm throughout the world (Russia, Lebanon, France, India, China) – Éric Reinhardt reveals the principles and values their architecture is based on.