It was a process of 600-700 years if I remember well... The volume of that mine is astonishing... Our "small" tourist route was under 2% of underground passages and chambers!
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It was a process of 600-700 years if I remember well... The volume of that mine is astonishing... Our "small" tourist route was under 2% of underground passages and chambers!
Wow this is truly historic place , over 600 years😳😳😳 that's like close to thousands years man wow that's one long history