Bookplanet: a map of city's fiction characters

Here's an interesting exercise in fabulous yet necessary frivolity. From the NY Times:
"I propose to create, with the help of the Book Review's readers, a literary map of Manhattan -- not of its authors' haunts but those of their characters, a map of the literary stars' homes. I began thinking about this map years ago while reading Don DeLillo's ''Great Jones Street.'' Bucky Wunderlick gazes out the window of his ''small crowded room'' at the firehouse across the street. I realized: there's only one firehouse on that street and few buildings that contain tiny apartments rather than commercial lofts. I know where Bucky Wunderlick lives. Or would live if he existed. He's got to be at No. 35. Knowing this made walking around the neighborhood like walking through the novel. But I walked without a map. Shouldn't there be a map of imaginary New Yorkers?
It would be a lush literary landscape -- the house on Washington Square where Catherine Sloper waited and yearned, the coffee shops where the characters of Ralph Ellison and Isaac Bashevis Singer quarreled and kibbitzed, the offices where John Cheever's people spent their days, the clubs where Jay McInerney's creatures wasted their nights, the East 70's and Upper West Side avenues where the Glass family bickered (Salinger gives several addresses), downtown where Ishmael wandered the docks." More here.
Maybe some of these characters could run into each other. Lily Bart could have an affair with Jay Gatsby. Damn, that may be a good idea for a novel. Somebody write it quick.