Every society reflects its abilities, dreams and limitations on the landscape; abilities, dreams and limitations that nowadays depend no longer only on its endogenous potential, but also on the place the society occupies in the world flows of capital, commodities, information and people. One could say that each society has the landscape that corresponds to it: that which its own technological development, its particular way of distributing wealth, its position in the world and its culture induce it to construct, in permanent dialogue with the natural environment. But this landscape is bequeathed to future generations in the form of built realities, which are at once a heritage and a burden, a potential and a limitation...