The Maison d'Ailleurs, the Museum of science fiction, utopia and extraordinary voyages in Yverdon-les-Bains, Switzerland is based on the collection of Pierre Versins, who donated his tens of thousands of science fiction books, comic books and many other sci-fi related documents to the city in the 1970s. Central parts of the collection are the work of Jules Verne, French series of Sci-Fi books, but also American pulp novels.
I had the pleasure to accompany my friend Dave Tompkins on a research mission to their book collection. We had very little time, but I'm glad I sneaked away from the study desk to take some pics of amazing covers.
Related post: the library of Andreas Züst