0 Euro Cerza Parc Zoologique Lisieux

Cerza, outside Lisieux in Calvados, is one of the larger zoological parks in northern France, covering around 35 hectares. The zero-euro souvenir note program — administered under Eurosouvenirs and printed by Oberthur Fiduciaire — has produced hundreds of these pieces since 2015, sold as collector items at face value of zero euros with a retail price set by the venue. They carry genuine euro banknote security features, including the hologram strip, which is what distinguishes them from simple printed ephemera and drives their appeal to a certain collector market.

Oberthur's involvement lends these notes technical credibility — the firm prints actual currency for multiple central banks.