0 Euro - Gouézec - Allée couverte de Loch-ar-Ronfl

The 0 Euro souvenir note program, administered jointly by EuroSouvenir and the Union Européenne des Métiers de la Winstub, operates entirely outside the European Central Bank's issuance framework — these are legal-looking but legally inert collector items, printed to euro specifications by licensed security printers. Oberthur Fiduciaire handles a significant portion of the series, bringing genuine banknote-grade paper and intaglio-adjacent production values to what is essentially a tourism product.

Loch-ar-Ronfl is a Neolithic allée couverte near Gouézec in Finistère, Brittany — the name translates roughly from Breton as "the stone of snoring," a folkloric reference to the sound of wind passing through the megalithic structure.