In June 2014, the Monferrato entered the Unesco World Heritage Site. It is the sixth component of the Langhe-Roero and Monferrato Wine Landscapes site. A recognition obtained for the beauty of its “infernot”, ancient underground cellars dug in the sandstone or Pietra da Cantoni, heritage of the seabed that characterized Monferrato between 5,5 and 3 million of years ago.
These tunnels, sometimes several meters deep below the ground, are extraordinary and functional works of art, often made by simple country masons, who had only empirical knowledge of architecture.