What did cover designers do with London-set books before the London Eye was built? Before that, it seems London didn't have a skyline identifiable to book-buyers. Now the Eye itself is becoming shorthand for central London.
The Baxter and Scarrow books, by the way, are recent additions to the end-of-the-world library. The former posits sea levels that keep rising and rising and rising, while the latter is a very good end-of-peak-oil novel somewhat hobbled by an unnecessary and somewhat daft vast-international-conspiracy subplot
This is completely unconnected, but interesting... the design of a commercial book cover, condensed into just under 2 minutes, by Lauren Panepinto.