A Walking Tour of the Shambles (Little Walks For Sightseers #16) (2002), written by Neil Gaiman

Neil Gaiman

Neil Richard Gaiman born 10 November 1960)is an English author of short fiction, novels, comic books, graphic novels, audio theatre and films. His notable works include the comic book series The Sandman and novels Stardust, American Gods, Coraline, and The Graveyard Book...

 and Gene Wolfe

Gene Wolfe

Gene Wolfe is an American science fiction and fantasy writer. He is noted for his dense, allusive prose as well as the strong influence of his Catholic faith, to which he converted after marrying into the religion. He is a prolific short story writer and a novelist, and has won many awards in the...

, is a tour guide

Tour guide

A tour guide provides assistance, information and cultural, historical and contemporary heritage interpretation to people on organized tours, individual clients, educational establishments, at religious and historical sites, museums, and at venues of other significant interest...

 concerning a fiction

Fiction

Fiction is the form of any narrative or informative work that deals, in part or in whole, with information or events that are not factual, but rather, imaginary—that is, invented by the author. Although fiction describes a major branch of literary work, it may also refer to theatrical,...

al part of Chicago

Chicago

Chicago is the largest city in the US state of Illinois. With nearly 2.7 million residents, it is the most populous city in the Midwestern United States and the third most populous in the US, after New York City and Los Angeles...

 called 'The Shambles'. It guides the reader through such non-existent landmarks as The House of Clocks (see the official website), Cereal House (home of the Terribly Strange Bed), and Gavagan's Irish Saloon. A collaboration between Neil Gaiman

Neil Gaiman

Neil Richard Gaiman born 10 November 1960)is an English author of short fiction, novels, comic books, graphic novels, audio theatre and films. His notable works include the comic book series The Sandman and novels Stardust, American Gods, Coraline, and The Graveyard Book...

 and Gene Wolfe

Gene Wolfe

Gene Wolfe is an American science fiction and fantasy writer. He is noted for his dense, allusive prose as well as the strong influence of his Catholic faith, to which he converted after marrying into the religion. He is a prolific short story writer and a novelist, and has won many awards in the...

 (cover by Gahan Wilson, with interior illustrations by Randy Broecker and Earl Geier), it was published with two different covers by the American Fantasy Press

American Fantasy Press

American Fantasy Press is a science fiction/fantasy/horror specialty press owned and operated by Robert T. Garcia and Nancy Garcia. Located in Woodstock, Illinois, the press has published: The first U.S...

(one crediting "Gaiman and Wolfe", the other crediting "Wolfe and Gaiman".
Note that although Chicago doesn't have a Shambles, Philadelphia for instance does.