Invisible Cities (Italian: Le città invisibili) is a novel by Italian writer Italo Calvino. It was published in Italy in 1972 by Giulio Einaudi Editore.
The book explores imagination and the imaginable through the descriptions of cities by the narrator, Marco Polo. The book is framed as a conversation between the aging and busy emperor Kublai Khan, who constantly has merchants coming to describe the state of his empire, and Polo. The majority of the book consists of Polo's descriptions (1-3 pages each) of the 55 cities. Short dialogues between the two characters are interspersed every five to ten cities and are used to discuss various ideas presented by the cities on a wide range of topics including linguistics and human nature.