21 Underrated European Capitals Worth Visiting in 2025

By

Lisette Marie

November 11, 2025

19. Luxembourg City, Luxembourg: Fortress on the Cliffs

The old town of Luxembourg city. Photo Credit: Envato @RossHelen

More than just a banking center, Luxembourg's capital boasts a breathtaking setting across deep gorges and dramatic cliffs. Its UNESCO-listed Old Town and fortifications offer a fascinating history lesson, particularly the Bock Casemates – impressive underground tunnels carved from rock. Explore the Grund district nestled below the cliffs, walk the Chemin de la Corniche ("Europe's most beautiful balcony"), and experience the unique blend of French, German, and Luxembourgish cultures. It’s a compact capital offering unexpected historical depth and stunning topography.

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