0 Euro - Musée d'Arromanches

Zero-euro souvenir notes were introduced in France in 2015 as a commercial novelty — legal in format, worthless by design, and sold directly to tourists as collectibles. Oberthur Fiduciaire produced the initial print run, applying genuine banknote security features including holograms and microprinting to what is, functionally, a museum gift shop item. The concept took off faster than organizers anticipated; by 2016, over a hundred French cultural sites had issued their own editions.

The Musée d'Arromanches sits above the remains of the Mulberry B artificial harbor, sunk deliberately off the Norman coast in June 1944 to supply Allied forces after D-Day. That harbor's concrete caissons are still visible from the museum windows — one of the few surviving intact sections of the original structure.