0 Euro - Lascaux - International Center for Parietal Art unicorn

The "unicorn" designation here refers not to the animal but to the Lascaux cave painting typically identified as such — though paleontologists have long argued the figure is more plausibly a rhinoceros or an aurochs-like creature with overlapping horns rendered in profile. The debate is unresolved. Lascaux IV, the fourth iteration of the replica site in the Dordogne, opened in 2016 after the original caves were permanently closed to the public in 1963 when CO₂ and humidity from visitor breath began destroying the 17,000-year-old pigments.

UEBA's souvenir zero-euro program operates under Banque de France authorization, with Oberthur Fiduciaire supplying genuine security-paper production — same printer behind numerous African and Pacific franc issues.