Veiner Nessmoort in Vianden
Veiner Nessmoort, the Vianden Nut Market, fills the medieval town of Vianden every second Sunday of October with stalls devoted to walnuts and nut products, most notably the Nesstaart, a walnut tart made with caramel. Running since 1934 and held annually since around 1970, the market draws roughly 20,000 visitors, with live music adding to the town's medieval atmosphere. The 2025 edition ran October 12, 10am to 7pm.
Vianden is best known for the castle that towers over its narrow streets, but each October the town's main identity shifts, briefly, to something more specific: walnuts.