The Adventures of Captain Hatteras (Voyages et aventures du capitaine Hatteras, 1866) by Jules Verne as published by Hetzel in the book series Voyages Extraordinaires ("Extraordinary Journeys").
A few more.
Other beautiful Jules Verne editions - in English.
Vintage illustrations from Jules Verne books.
The maps from the Voyages Extraordinaires.
If anyone knows of an extensive collection of Jules Verne book covers - Hetzel edition or other - scanned in a decent size, please let me know.