Beneath the Montée de Clausen, the cliff-top site of Count Sigefroi’s once-mighty fort, the Bock Casemates are a picturesque, atmospheric honeycomb of rock galleries and passages – yes, kids will love it – initially carved by the Spaniards between 1737 and 1746. Over the years the casemates have housed everything from garrisons to bakeries to slaughterhouses; during WWI and WWII they sheltered 35,000 locals.
