0 Euro - Ávila Ciudad Amurallada

Ávila's medieval walls — among the best-preserved in Europe, dating to the late eleventh century — provided the subject for this 2021 EuroSouvenir zero-denomination note. The series, launched in France around 2015 and later expanded across European tourist sites, was always intended as a collector keepsake rather than a circulating instrument, sold directly to visitors at cultural sites for a nominal fee covering production costs.

Oberthur Fiduciaire's involvement lends genuine security printing credentials to what is essentially a souvenir — the firm has printed currency for dozens of central banks.