Rolling and vast hills that stretch to the horizon, ancient villages and perched castles, a succession of gentle slopes cultivated with vineyards whose rows draw rigid geometries: these are the magnificent landscapes of Monferrato, now a UNESCO World Heritage site. These splendid wine-producing areas of Piedmont, with their landscapes shaped by the combined action of nature and man, have become part of the World Heritage List. These strips of land, extending in a lively play of profiles, modulated by the changing seasons, represent the exceptional quality of the Piedmontese landscape and its deep and vibrant wine culture. They are areas of production of excellent wines of international quality - such as Asti Spumante, Barbera d'Asti, and Malvasia - made thanks to a rich heritage of knowledge and techniques, based on a deep understanding of the grape varieties cultivated here for centuries. The Monferrato of the Infernots, that is the area of Lower Monferrato where the "infernots" are located, old cellars several meters deep, dug directly into a particular rock similar to tuff (the Cantoni Stone). The owners and original builders of these cellars, although they did not have extensive knowledge of construction or geology, managed to create perfect and beautiful works to visit. These are breathtaking places that UNESCO describes as "an exceptional and living testimony to the historical tradition of vine cultivation, winemaking processes, a social and rural context, and an economic fabric based on wine culture." "The vineyards of Monferrato - as stated in the official motivation for their inscription - constitute an exceptional example of the interaction between man and his natural environment."