As little as Marco Polo and Kublai Khan are historical figures in this book, the cities described by the fictional Venetian are also not real places in the inhabited world. Rather, they are playgrounds of imagination that must not be absent among the forms of possible cities. Italo Calvino, who was always a storyteller and never wrote a line of poetry, created one of the most beautiful, imaginative, and precise works with "Invisible Cities.".