Visit the Krzemionki prehistoric flint mines in Poland, a UNESCO World Heritage site showcasing ancient mining techniques and Neolithic history
Explore the historic silver mine in Tarnowskie Gory, a UNESCO World Heritage site with underground tunnels and mining history
Colonial silver city beneath the "rich hill" that bankrolled an empire.
Cathedral-sized salt chambers with an underground lake and Ferris wheel.
Walk the ghost settlement of Santa Bรกrbara, the colonial mercury mine they called 'the mine of death'
UNESCO silver-mining town folded into an old volcanic caldera.
Silver-mining city of candy-coloured houses stacked up a ravine, with streets in tunnels and student minstrels serenading the alleys.
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