What famous network of underground tunnels and galleries lies beneath Luxembourg City?
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The Casemates du Bock are a UNESCO World Heritage site, comprising a vast labyrinth of tunnels carved into the rock, originally part of the city's formidable fortifications. They served as shelters and military strongholds for centuries, earning Luxembourg City the nickname 'Gibraltar of the North'. Today, visitors can explore these historic passages and enjoy panoramic views.
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