Opening its doors on 15 July, the 23rd edition of the Triennale Milano International Exhibition tackles the question of the unknown through its theme “Unknown Unknowns. An Introduction to Mysteries”. With so many challenges, both known and mysterious, facing the world, this latest International Exhibition will offer new perspectives through its constellation of thematic and international exhibits. Stefano Boeri, President of Triennale Milano and Ersilia Vaudo, curator of the thematic exhibition, delve into the meaning and aspirations of the 23rd Triennale Milano.