2024
SLATE MUSEUM
Specialized museum
4.7/5
• 25 reviews
Closed
Read moreThe underground quarries of the Martelange slate quarries are now open to the public! On foot, plunge to a depth of -42 meters via some 370 steps. Pass over a suspension bridge and terraces, past breathtaking walls forged by man. Discover millennia-old treasures enhanced by unique, modern lighting and projections. The new underground section of the Musée de l'Ardoise Haut-Martelange is an astonishing piece of Luxembourg's heritage, to be explored alone or in groups, with or without a guide.