A treasure hidden under the city

Step back in time and explore the hidden secrets of Luxembourg with Luxembourg City Underground! The Bock and Pétrusse Casemates open their secret passages for a unique adventure beneath the city. And the cherry on top: they're open ALL year round (except December 25th and January 1st)! It's time to discover a fascinating underground network, rich in history, secrets, and unusual anecdotes. The Casemates du Bock reveal their underground corridors and fortified chambers, with the added bonus of a breathtaking view of the old town. A fascinating dive into the history of a once impregnable fortress! Miles of labyrinth and underground corridors await you! Discover the dungeon of the former Luxembourg Castle, the 47m-deep well, and cross the magnificent arches of the Pont du Château to admire the incredible panorama of the lower town. A journey through the centuries that will amaze you! And that's not all! The Casemates de la Pétrusse offer an even wilder experience with light shows, projections, and interactive activities. Blending heritage and modernity, this tour promises to be as fun as it is informative. Top tip: at the end of your visit, don't forget to take a look at the gigantic field gun (last used at the birth of Grand Duke Jean in 1921), before heading back outside to the beautiful valley for another (yet again) breathtaking view! A must-see experience for all culture and history enthusiasts! Fun, captivating, and 100% wow! So, are you up for exploring these hidden treasures?