As the world’s only remaining Grand Duchy, Luxembourg is a wealthy, multicultural powerhouse that balances high-finance modernity with fairytale scenery. Luxembourg City is a dramatic feat of engineering, built across deep river gorges with its UNESCO-listed Bock Casemates - an underground labyrinth of defense tunnels - offering a glimpse into its "Gibraltar of the North" past. Beyond the capital’s cosmopolitan center, the Mullerthal Region, often called "Little Switzerland," features mossy rock formations and enchanting waterfalls perfect for hiking. To the north, the Ardennes mountains are home to the fairytale Vianden Castle, while the Moselle Valley in the east produces world-class Rieslings and sparkling wines. Small, safe, and incredibly efficient, Luxembourg proves that a tiny nation can offer a remarkably grand European experience.