No, there are no dioramas. But the website for Nathaniel Rich's debut novel 'The Mayor's Tongue' does have a fun gimmicky conceit of its very own: Because the novel is about a fictional, mythic (and prolific) writer named Constance Eakins, the site aims to generate book covers for all of Eakins' faux-oeuvre. You can even submit one, if you have that kind of design-geek inclination and free time! There's also a long fake 'Paris Review' interview with Eakins (which seems like an inside joke that the author, an editor at that journal, is having with himself) and a selection of scholarship about the great man.
Go to this website and spend some time poking around because, seriously, think of how much time and effort went into this. I admire baroque book websites but at the same time I think it's kind of like going to the beach and building an ornate sand replica of the Taj Mahal over the corpse of a crab.