0 Euro - Nice - Cathédrale Saint-Nicolas

The souvenir zero-euro note program, administered by the Union Européenne des Jetons et Valises, was launched in 2015 and has since produced thousands of regional collector issues across Europe. These notes are printed to full ECB security specifications by licensed security printers — Oberthur among them — which means they carry genuine anti-counterfeiting features despite having no tender status whatsoever. The paradox of a fully secured note worth nothing is, depending on your view, either brilliant marketing or an expensive joke at the collector's expense.

Nice's Cathédrale Saint-Nicolas is the largest Russian Orthodox cathedral in Western Europe, built between 1903 and 1912 to serve the sizeable Russian aristocratic community then wintering on the Côte d'Azur.