The Wieliczka Salt Mine is 135 meters (approx. 443 feet) underground. After 900 years, the mine ceased operating in 1996, mainly due to flooding.

The Wieliczka Salt Mine is 135 meters (approx. 443 feet) underground. After 900 years, the mine ceased operating in 1996, mainly due to flooding.

The Wieliczka Salt Mine is 135 meters (approx. 443 feet) underground. After 900 years, the mine ceased operating in 1996, mainly due to flooding.

The Wieliczka Salt Mine is 135 meters (approx. 443 feet) underground. After 900 years, the mine ceased operating in 1996, mainly due to flooding.

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