Artist Colleen Corradi Brannigan has taken it upon herself to illustrate all fifty-five of the fantastical cityscapes described in Italo Calvino's 1972 novel Invisible Cities. She's not finished with this project, but she's pretty darn close at this point. As you can see from her above depiction of the migratory, clone cities of Eutropia, she's working with several media to depict the bizarre locales described by Marco Polo. Here's but a sampling of her completed cities.
The pipe city of Armilla.
[Via John Coulhart]